Complete List of House Polls Used
Below we have a list of all the House polls used on this site. Only nonpartisan polls are used; polls taken by pollsters working for one of the parties are intentionally omitted as they tend to be more "fun with numbers" exercises rather than attempts to gauge public opinion.
The date given below in column 2 is when the poll ended. The poll length is also given. The polls for each state are sorted in descending order of their midpoints. Incumbents are denoted by asterisks.
The data are also available as plain text and in .csv format for use with Excel. In the latter, the first column is the day number of the midpoint (Jan. 1, 2008 = day 1.0) and the second is the poll length in days.
The site also has a page describing the House races, including brief descriptions of the situation, the names and photos of the candidates, and links to their campaign pages, Wikipedia entries, and state parties.
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-01 | (Unopposed) | 00% | Jo Bonner* | 83% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-01 | (Unopposed) | 00% | Jo Bonner* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| AL-01 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-02 | Bobby Bright* | 49% | Martha Roby | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-02 | Bobby Bright* | 50% | Martha Roby | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| AL-02 | Democrat | 50% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-03 | Steve Segrest | 41% | Mike Rogers* | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-03 | Steve Segrest | 45% | Mike Rogers* | 54% | Feb 01 | Feb 01 | GOP (R+9) | ||
| AL-03 | Democrat | 47% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-04 | (Unopposed) | 00% | Robert Aderholt* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-04 | (Unopposed) | 00% | Robert Aderholt* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| AL-04 | Democrat | 25% | Republican | 75% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-05 | Steve Raby | 42% | Mo Brooks | 58% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-05 | Steve Raby | 44% | Mo Brooks | 56% | Feb 01 | Feb 01 | GOP (open R+12) | ||
| AL-05 | Democrat | 48% | Republican | 52% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-06 | (Unopposed) | 00% | Spencer Bachus* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-06 | (Unopposed) | 00% | Spencer Bachus* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| AL-06 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AL-07 | Terri Sewell | 72% | Don Chamberlain | 28% | Nov 09 | Nov 09 | 2010 Election | ||
| AL-07 | Terri Sewell | 59% | Don Chamberlain | 41% | Feb 01 | Feb 01 | Dem (open D+18) | ||
| AL-07 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AK-AL | Harry Crawford | 31% | Don Young* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| AK-AL | Harry Crawford | 32% | Don Young* | 65% | Sep 23 | Sep 27 | Ivan Moore | ||
| AK-AL | Harry Crawford | 34% | Don Young* | 49% | Aug 28 | Aug 28 | PPP | ||
| AK-AL | Harry Crawford | 43% | Don Young* | 56% | Feb 01 | Feb 01 | GOP (since 1973) | ||
| AK-AL | Democrat | 45% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-01 | Ann Kirkpatrick* | 44% | Paul Gosar | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-01 | Ann Kirkpatrick* | 39% | Paul Gosar | 46% | Sep 28 | Sep 30 | Penn Schoen Berland | ||
| AZ-01 | Ann Kirkpatrick* | 50% | Paul Gosar | 50% | Feb 01 | Feb 01 | Tossup | ||
| AZ-01 | Democrat | 56% | Republican | 40% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-02 | John Thrasher | 31% | Trent Franks* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-02 | John Thrasher | 37% | Trent Franks* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| AZ-02 | Democrat | 37% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-03 | Jon Hulburd | 41% | Ben Quayle | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-03 | Jon Hulburd | 45% | Ben Quayle | 54% | Feb 01 | Feb 01 | GOP (open R+9) | ||
| AZ-03 | Democrat | 42% | Republican | 54% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-04 | Ed Pastor* | 65% | Janet Contreras | 29% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-04 | Ed Pastor* | 72% | Janet Contreras | 21% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| AZ-04 | Democrat | 72% | Republican | 21% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-05 | Harry Mitchell* | 43% | David Schweikert | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-05 | Harry Mitchell* | 50% | David Schweikert | 50% | Feb 01 | Feb 01 | Tossup | ||
| AZ-05 | Democrat | 53% | Republican | 44% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-06 | Rebecca Schneider | 29% | Jeff Flake* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-06 | Rebecca Schneider | 35% | Jeff Flake* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| AZ-06 | Democrat | 35% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-07 | Raul Grijalva* | 49% | Ruth McClung | 45% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-07 | Raul Grijalva* | 63% | Ruth McClung | 33% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| AZ-07 | Democrat | 63% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AZ-08 | Gabrielle Giffords* | 49% | Jesse Kelly | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| AZ-08 | Gabrielle Giffords* | 50% | Jesse Kelly | 50% | Feb 01 | Feb 01 | Tossup | ||
| AZ-08 | Democrat | 55% | Republican | 43% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AR-01 | Chad Causey | 43% | Rick Crawford | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| AR-01 | Chad Causey | 46% | Rick Crawford | 54% | Feb 01 | Feb 01 | GOP (open R+8) | ||
| AR-01 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AR-02 | Joyce Elliott | 38% | Tim Griffin | 58% | Nov 09 | Nov 09 | 2010 Election | ||
| AR-02 | Joyce Elliott | 47% | Tim Griffin | 52% | Feb 01 | Feb 01 | GOP (open R+5) | ||
| AR-02 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AR-03 | David Whitaker | 28% | Steve Womack | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| AR-03 | David Whitaker | 31% | Steve Womack | 55% | Aug 25 | Aug 25 | TalkBusiness | ||
| AR-03 | David Whitaker | 42% | Steve Womack | 58% | Feb 01 | Feb 01 | GOP (open R+16) | ||
| AR-03 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| AR-04 | Mike Ross* | 58% | Beth Anne Rankin | 40% | Nov 09 | Nov 09 | 2010 Election | ||
| AR-04 | Mike Ross* | 49% | Beth Anne Rankin | 31% | Aug 26 | Aug 26 | TalkBusiness | ||
| AR-04 | Mike Ross* | 50% | Beth Anne Rankin | 50% | Feb 01 | Feb 01 | Tossup | ||
| AR-04 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-01 | Mike Thompson* | 63% | Loren Hanks | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-01 | Mike Thompson* | 68% | Loren Hanks | 24% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| CA-01 | Democrat | 68% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-02 | Jim Reed | 43% | Wally Herger* | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-02 | Jim Reed | 44% | Wally Herger* | 55% | Feb 01 | Feb 01 | GOP (since 1988) | ||
| CA-02 | Democrat | 43% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-03 | Ami Bera | 43% | Dan Lungren* | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-03 | Ami Bera | 38% | Dan Lungren* | 46% | Sep 18 | Sep 19 | PPP | ||
| CA-03 | Ami Bera | 47% | Dan Lungren* | 53% | Feb 01 | Feb 01 | GOP (since 1998) | ||
| CA-03 | Democrat | 44% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-04 | Clint Curtis | 31% | Tom McClintock* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-04 | Clint Curtis | 50% | Tom McClintock* | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| CA-04 | Democrat | 49% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-05 | Doris Matsui* | 72% | Paul Smith | 26% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-05 | Doris Matsui* | 74% | Paul Smith | 21% | Feb 01 | Feb 01 | Dem (74% in 2008) | ||
| CA-05 | Democrat | 74% | Republican | 21% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-06 | Lynn Woolsey* | 65% | Jim Judd | 30% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-06 | Lynn Woolsey* | 72% | Jim Judd | 24% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CA-06 | Democrat | 72% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-07 | George Miller* | 67% | Rick Tubbs | 33% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-07 | George Miller* | 73% | Rick Tubbs | 21% | Feb 01 | Feb 01 | Dem (73% in 2008) | ||
| CA-07 | Democrat | 73% | Republican | 21% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-08 | Nancy Pelosi* | 80% | John Dennis | 15% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-08 | Nancy Pelosi* | 72% | John Dennis | 09% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CA-08 | Democrat | 72% | Republican | 09% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-09 | Barbara Lee* | 83% | Gerald Hashimoto | 12% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-09 | Barbara Lee* | 86% | Gerald Hashimoto | 10% | Feb 01 | Feb 01 | Dem (86% in 2008) | ||
| CA-09 | Democrat | 86% | Republican | 10% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-10 | John Garamendi* | 58% | Gary Clift | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-10 | John Garamendi* | 55% | Gary Clift | 44% | Feb 01 | Feb 01 | Dem (D+11) | ||
| CA-10 | John Garamendi* | 53% | Gary Clift | 43% | Jan 01 | Jan 01 | Special election November 2009 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-11 | Jerry McNerney* | 49% | David Harmer | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-11 | Jerry McNerney* | 50% | David Harmer | 50% | Feb 01 | Feb 01 | Tossup | ||
| CA-11 | Democrat | 55% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-12 | Jackie Speier* | 75% | Mike Moloney | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-12 | Jackie Speier* | 75% | Mike Moloney | 19% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| CA-12 | Democrat | 75% | Republican | 19% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-13 | Pete Stark* | 72% | Forest Baker | 28% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-13 | Pete Stark* | 76% | Forest Baker | 24% | Feb 01 | Feb 01 | Dem (76% in 2008) | ||
| CA-13 | Democrat | 76% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-14 | Anna Eshoo* | 68% | Dave Chapman | 29% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-14 | Anna Eshoo* | 70% | Dave Chapman | 22% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| CA-14 | Democrat | 70% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-15 | Mike Honda* | 67% | Scott Kirkland | 33% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-15 | Mike Honda* | 72% | Scott Kirkland | 23% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CA-15 | Democrat | 72% | Republican | 23% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-16 | Zoe Lofgren* | 67% | Daniel Sahagun | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-16 | Zoe Lofgren* | 71% | Daniel Sahagun | 24% | Feb 01 | Feb 01 | Dem (71% in 2008) | ||
| CA-16 | Democrat | 71% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-17 | Sam Farr* | 66% | Jeff Taylor | 30% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-17 | Sam Farr* | 75% | Jeff Taylor | 25% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| CA-17 | Democrat | 75% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-18 | Dennis Cardoza* | 58% | Michael Berryhill | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-18 | Dennis Cardoza* | 50% | Michael Berryhill | 50% | Feb 01 | Feb 01 | Tossup | ||
| CA-18 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-19 | Lorraine Goodwin | 35% | Jeff Denham | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-19 | Lorraine Goodwin | 30% | Jeff Denham | 63% | Sep 10 | Sep 13 | SurveyUSA | ||
| CA-19 | Lorraine Goodwin | 45% | Jeff Denham | 54% | Feb 01 | Feb 01 | GOP (open R+9) | ||
| CA-19 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-20 | Jim Costa* | 50% | Andy Vidak | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-20 | Jim Costa* | 48% | Andy Vidak | 46% | Sep 10 | Sep 12 | SurveyUSA | ||
| CA-20 | Jim Costa* | 73% | Andy Vidak | 27% | Feb 01 | Feb 01 | Dem (73% in 2008) | ||
| CA-20 | Democrat | 73% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-21 | (Unopposed) | 00% | Devin Nunes* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-21 | (Unopposed) | 00% | Devin Nunes* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| CA-21 | Democrat | 32% | Republican | 68% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-22 | (Unopposed) | 00% | Kevin McCarthy* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-22 | (Unopposed) | 00% | Kevin McCarthy* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| CA-22 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-23 | Lois Capps* | 57% | Tom Watson | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-23 | Lois Capps* | 68% | Tom Watson | 32% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| CA-23 | Democrat | 68% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-24 | Timothy Allison | 40% | Elton Gallegly* | 60% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-24 | Timothy Allison | 42% | Elton Gallegly* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| CA-24 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-25 | Jackie Conaway | 38% | Howard McKeon* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-25 | Jackie Conaway | 47% | Howard McKeon* | 53% | Feb 01 | Feb 01 | GOP (since 1992) | ||
| CA-25 | Democrat | 43% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-26 | Russ Warner | 37% | David Dreier* | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-26 | Russ Warner | 48% | David Dreier* | 51% | Feb 01 | Feb 01 | GOP (since 1980) | ||
| CA-26 | Democrat | 41% | Republican | 52% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-27 | Brad Sherman* | 65% | Mark Reed | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-27 | Brad Sherman* | 69% | Mark Reed | 25% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| CA-27 | Democrat | 69% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-28 | Howard Berman* | 70% | Merlin Froyd | 22% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-28 | Howard Berman* | 61% | Merlin Froyd | 38% | Feb 01 | Feb 01 | Dem (since 1982) | ||
| CA-28 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-29 | Adam Schiff* | 65% | John Colbert | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-29 | Adam Schiff* | 70% | John Colbert | 26% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| CA-29 | Democrat | 70% | Republican | 26% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-30 | Henry Waxman* | 65% | Chuck Wilkerson | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-30 | Henry Waxman* | 59% | Chuck Wilkerson | 41% | Feb 01 | Feb 01 | Dem (since 1974) | ||
| CA-30 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-31 | Xavier Becerra* | 84% | Stephen Smith | 16% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-31 | Xavier Becerra* | 64% | Stephen Smith | 35% | Feb 01 | Feb 01 | Dem (since 1992) | ||
| CA-31 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-32 | Judy Chu* | 71% | Ed Schmerling | 29% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-32 | Judy Chu* | 62% | Ed Schmerling | 33% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| CA-32 | Judy Chu* | 62% | Ed Schmerling | 33% | Jan 01 | Jan 01 | Special election May 2009 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-33 | Karen Bass | 86% | James Andion | 14% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-33 | Karen Bass | 67% | James Andion | 32% | Feb 01 | Feb 01 | Dem (open D+35) | ||
| CA-33 | Democrat | 88% | Republican | 12% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-34 | Lucille Roybal-Allard* | 77% | Wayne Miller | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-34 | Lucille Roybal-Allard* | 77% | Wayne Miller | 23% | Feb 01 | Feb 01 | Dem (77% in 2008) | ||
| CA-34 | Democrat | 77% | Republican | 23% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-35 | Maxine Waters* | 79% | Bruce Brown | 21% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-35 | Maxine Waters* | 83% | Bruce Brown | 13% | Feb 01 | Feb 01 | Dem (83% in 2008) | ||
| CA-35 | Democrat | 83% | Republican | 13% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-36 | Jane Harman* | 60% | Mattie Fein | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-36 | Jane Harman* | 69% | Mattie Fein | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| CA-36 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-37 | Laura Richardson* | 69% | Star Parker | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-37 | Laura Richardson* | 63% | Star Parker | 37% | Feb 01 | Feb 01 | Dem (D+26) | ||
| CA-37 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-38 | Grace Napolitano* | 74% | Robert Vaughn | 26% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-38 | Grace Napolitano* | 59% | Robert Vaughn | 41% | Feb 01 | Feb 01 | Dem (since 1998) | ||
| CA-38 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-39 | Linda Sanchez* | 64% | Larry Andre | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-39 | Linda Sanchez* | 70% | Larry Andre | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| CA-39 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-40 | Christina Avalos | 33% | Ed Royce* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-40 | Christina Avalos | 37% | Ed Royce* | 63% | Feb 01 | Feb 01 | GOP (63% in 2008) | ||
| CA-40 | Democrat | 37% | Republican | 63% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-41 | Pat Meagher | 37% | Jerry Lewis* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-41 | Pat Meagher | 38% | Jerry Lewis* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| CA-41 | Democrat | 38% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-42 | Michael Williamson | 32% | Gary Miller* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-42 | Michael Williamson | 40% | Gary Miller* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| CA-42 | Democrat | 40% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-43 | Joe Baca* | 65% | Scott Folkens | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-43 | Joe Baca* | 68% | Scott Folkens | 32% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| CA-43 | Democrat | 68% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-44 | Bill Hedrick | 45% | Ken Calvert* | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-44 | Bill Hedrick | 38% | Ken Calvert* | 44% | Sep 24 | Sep 26 | PPP | ||
| CA-44 | Bill Hedrick | 50% | Ken Calvert* | 50% | Feb 01 | Feb 01 | Tossup (2% diff in | ||
| CA-44 | Democrat | 49% | Republican | 51% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-45 | Steve Pougnet | 42% | Mary Bono-Mack* | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-45 | Steve Pougnet | 48% | Mary Bono-Mack* | 51% | Feb 01 | Feb 01 | GOP (since 1998) | ||
| CA-45 | Democrat | 43% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-46 | Ken Arnold | 38% | Dana Rohrabacher* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-46 | Ken Arnold | 47% | Dana Rohrabacher* | 53% | Feb 01 | Feb 01 | GOP (since 1988) | ||
| CA-46 | Democrat | 43% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-47 | Loretta Sanchez* | 51% | Van Tran | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-47 | Loretta Sanchez* | 67% | Van Tran | 27% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| CA-47 | Democrat | 67% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-48 | Beth Krom | 36% | John Campbell* | 60% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-48 | Beth Krom | 47% | John Campbell* | 53% | Feb 01 | Feb 01 | GOP (R+6) | ||
| CA-48 | Democrat | 41% | Republican | 55% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-49 | Howard Katz | 44% | Darrell Issa* | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-49 | Howard Katz | 38% | Darrell Issa* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| CA-49 | Democrat | 38% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-50 | Francine Busby | 39% | Brian Bilbray* | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-50 | Francine Busby | 48% | Brian Bilbray* | 51% | Feb 01 | Feb 01 | GOP (R+3) | ||
| CA-50 | Democrat | 46% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-51 | Bob Filner* | 60% | Nick Popaditch | 40% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-51 | Bob Filner* | 72% | Nick Popaditch | 25% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CA-51 | Democrat | 72% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-52 | Ray Lutz | 32% | Duncan Hunter* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-52 | Ray Lutz | 45% | Duncan Hunter* | 54% | Feb 01 | Feb 01 | GOP (R+9) | ||
| CA-52 | Democrat | 39% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-53 | Susan Davis* | 62% | Michael Crimmins | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-53 | Susan Davis* | 69% | Michael Crimmins | 27% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| CA-53 | Democrat | 69% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-01 | Diana DeGette* | 68% | Mike Fallon | 29% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-01 | Diana DeGette* | 72% | Mike Fallon | 24% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CO-01 | Democrat | 72% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-02 | Jared Polis* | 57% | Stephen Bailey | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-02 | Jared Polis* | 62% | Stephen Bailey | 34% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| CO-02 | Democrat | 62% | Republican | 34% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-03 | John Salazar* | 46% | Scott Tipton | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-03 | John Salazar* | 61% | Scott Tipton | 39% | Feb 01 | Feb 01 | Dem (61% in 2008) | ||
| CO-03 | Democrat | 61% | Republican | 39% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CA-04 | Betsy Markey* | 41% | Cory Gardner | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| CA-04 | Betsy Markey* | 41% | Cory Gardner | 44% | Sep 25 | Sep 27 | Penn Schoen Berland | ||
| CA-04 | Betsy Markey* | 50% | Cory Gardner | 50% | Feb 01 | Feb 01 | Tossup | ||
| CA-04 | Democrat | 56% | Republican | 44% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-05 | Kevin Bradley | 29% | Doug Lamborn* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-05 | Kevin Bradley | 37% | Doug Lamborn* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| CO-05 | Democrat | 37% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-06 | John Flerlage | 31% | Mike Coffman* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-06 | John Flerlage | 40% | Mike Coffman* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| CO-06 | Democrat | 40% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CO-07 | Ed Perlmutter* | 53% | Ryan Frazier | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| CO-07 | Ed Perlmutter* | 63% | Ryan Frazier | 37% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| CO-07 | Democrat | 63% | Republican | 37% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-01 | John Larson* | 61% | Ann Brickley | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-01 | John Larson* | 72% | Ann Brickley | 26% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| CT-01 | Democrat | 72% | Republican | 26% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-02 | Joe Courtney* | 60% | Janet Peckinpaugh | 39% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-02 | Joe Courtney* | 65% | Janet Peckinpaugh | 33% | Feb 01 | Feb 01 | Dem (65% in 2008) | ||
| CT-02 | Democrat | 65% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-03 | Rosa DeLauro* | 65% | Larry Labriola | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-03 | Rosa DeLauro* | 77% | Larry Labriola | 20% | Feb 01 | Feb 01 | Dem (77% in 2008) | ||
| CT-03 | Democrat | 77% | Republican | 20% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-04 | Jim Himes* | 53% | Dan Debicella | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-04 | Jim Himes* | 50% | Dan Debicella | 50% | Feb 01 | Feb 01 | Tossup | ||
| CT-04 | Democrat | 51% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| CT-05 | Chris Murphy* | 54% | Sam Caligiuri | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| CT-05 | Chris Murphy* | 59% | Sam Caligiuri | 39% | Feb 01 | Feb 01 | Dem (59% in 2008) | ||
| CT-05 | Democrat | 59% | Republican | 39% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| DE-AL | John Carney | 57% | Glen Urquhart | 41% | Nov 09 | Nov 09 | 2010 Election | ||
| DE-AL | John Carney | 51% | Glen Urquhart | 36% | Sep 27 | Oct 03 | Fairleigh Dickinson U. | ||
| DE-AL | John Carney | 48% | Glen Urquhart | 31% | Sep 16 | Sep 30 | U. of Delaware | ||
| DE-AL | John Carney | 48% | Glen Urquhart | 37% | Sep 11 | Sep 12 | PPP | ||
| DE-AL | John Carney | 53% | Glen Urquhart | 46% | Feb 01 | Feb 01 | Dem (open D+7) | ||
| DE-AL | Democrat | 38% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-01 | (Unopposed) | 00% | Jeff Miller* | 81% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-01 | (Unopposed) | 00% | Jeff Miller* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| FL-01 | Democrat | 30% | Republican | 70% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-02 | Allen Boyd* | 41% | Steve Southerland | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-02 | Allen Boyd* | 62% | Steve Southerland | 38% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| FL-02 | Democrat | 62% | Republican | 38% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-03 | Corrine Brown* | 63% | Mike Yost | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-03 | Corrine Brown* | 59% | Mike Yost | 41% | Feb 01 | Feb 01 | Dem (since 1992) | ||
| FL-03 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-04 | (Unopposed) | 00% | Ander Crenshaw* | 77% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-04 | (Unopposed) | 00% | Ander Crenshaw* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| FL-04 | Democrat | 35% | Republican | 65% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-05 | Jim Piccillo | 33% | Rich Nugent | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-05 | Jim Piccillo | 45% | Rich Nugent | 54% | Feb 01 | Feb 01 | GOP (open R+9) | ||
| FL-05 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-06 | (Unopposed) | 00% | Cliff Stearns* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-06 | (Unopposed) | 00% | Cliff Stearns* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| FL-06 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-07 | Heather Beaven | 31% | John Mica* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-07 | Heather Beaven | 38% | John Mica* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| FL-07 | Democrat | 38% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-08 | Alan Grayson* | 38% | Dan Webster | 56% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-08 | Alan Grayson* | 38% | Dan Webster | 46% | Jul 15 | Jul 15 | Zogby | ||
| FL-08 | Alan Grayson* | 50% | Dan Webster | 50% | Feb 01 | Feb 01 | Tossup | ||
| FL-08 | Democrat | 52% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-09 | Anita de Palma | 29% | Gus Bilirakis* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-09 | Anita de Palma | 36% | Gus Bilirakis* | 63% | Feb 01 | Feb 01 | GOP (63% in 2008) | ||
| FL-09 | Democrat | 36% | Republican | 63% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-10 | Charlie Justice | 34% | Bill Young* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-10 | Charlie Justice | 39% | Bill Young* | 61% | Feb 01 | Feb 01 | GOP (61% in 2008) | ||
| FL-10 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-11 | Kathy Castor* | 60% | Mike Prendergast | 40% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-11 | Kathy Castor* | 70% | Mike Prendergast | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| FL-11 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-12 | Lori Edwards | 41% | Dennis Ross | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-12 | Lori Edwards | 47% | Dennis Ross | 53% | Feb 01 | Feb 01 | GOP (open R+6) | ||
| FL-12 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-13 | James Golden | 31% | Vern Buchanan* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-13 | James Golden | 47% | Vern Buchanan* | 53% | Feb 01 | Feb 01 | GOP (R+6) | ||
| FL-13 | Democrat | 38% | Republican | 55% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-14 | James Roach | 28% | Connie Mack* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-14 | James Roach | 25% | Connie Mack* | 59% | Feb 01 | Feb 01 | GOP (59% in 2008) | ||
| FL-14 | Democrat | 25% | Republican | 59% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-15 | Shannon Roberts | 35% | Bill Posey* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-15 | Shannon Roberts | 47% | Bill Posey* | 53% | Feb 01 | Feb 01 | GOP (R+6) | ||
| FL-15 | Democrat | 42% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-16 | Jim Horn | 33% | Tom Rooney* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-16 | Jim Horn | 40% | Tom Rooney* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| FL-16 | Democrat | 40% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-17 | Frederica Wilson | 86% | (Unopposed) | 00% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-17 | Frederica Wilson | 99% | (Unopposed) | 00% | Feb 01 | Feb 01 | Dem (unopposed) | ||
| FL-17 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-18 | Rolando Banciella | 31% | Ileana Ros-Lehtinen* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-18 | Rolando Banciella | 42% | Ileana Ros-Lehtinen* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| FL-18 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-19 | Ted Deutch* | 63% | Joe Budd | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-19 | Ted Deutch* | 62% | Joe Budd | 27% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-20 | Debbie Wasserman Schultz* | 60% | Karen Harrington | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-20 | Debbie Wasserman Schultz* | 56% | Karen Harrington | 43% | Feb 01 | Feb 01 | Dem (D+13) | ||
| FL-20 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-21 | (Unopposed) | 00% | Mario Diaz-Balart | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-21 | (Unopposed) | 00% | Mario Diaz-Balart | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| FL-21 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-22 | Ron Klein* | 46% | Allen West | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-22 | Ron Klein* | 50% | Allen West | 50% | Feb 01 | Feb 01 | Tossup | ||
| FL-22 | Democrat | 55% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-23 | Alcee Hastings* | 79% | Bernard Sansaricq | 21% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-23 | Alcee Hastings* | 82% | Bernard Sansaricq | 18% | Feb 01 | Feb 01 | Dem (82% in 2008) | ||
| FL-23 | Democrat | 82% | Republican | 18% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-24 | Suzanne Kosmas* | 40% | Sandy Adams | 60% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-24 | Suzanne Kosmas* | 50% | Sandy Adams | 50% | Feb 01 | Feb 01 | Tossup | ||
| FL-24 | Democrat | 57% | Republican | 41% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| FL-25 | Joe Garcia | 42% | David Rivera | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| FL-25 | Joe Garcia | 47% | David Rivera | 52% | Feb 01 | Feb 01 | GOP (open R+5) | ||
| FL-25 | Democrat | 47% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-01 | Oscar Harris | 28% | Jack Kingston* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-01 | Oscar Harris | 33% | Jack Kingston* | 67% | Feb 01 | Feb 01 | GOP (67% in 2008) | ||
| GA-01 | Democrat | 33% | Republican | 67% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-02 | Sanford Bishop* | 51% | Mike Keown | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-02 | Sanford Bishop* | 69% | Mike Keown | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| GA-02 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-03 | Frank Saunders | 31% | Lynn Westmoreland* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-03 | Frank Saunders | 34% | Lynn Westmoreland* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| GA-03 | Democrat | 34% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-04 | Hank Johnson* | 75% | Liz Carter | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-04 | Hank Johnson* | 62% | Liz Carter | 38% | Feb 01 | Feb 01 | Dem (D+24) | ||
| GA-04 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-05 | John Lewis* | 74% | Fenn Little | 26% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-05 | John Lewis* | 63% | Fenn Little | 37% | Feb 01 | Feb 01 | Dem (since 1986) | ||
| GA-05 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-06 | (Unopposed) | 00% | Tom Price* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-06 | (Unopposed) | 00% | Tom Price* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| GA-06 | Democrat | 31% | Republican | 69% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-07 | Doug Heckman | 33% | Rob Woodall | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-07 | Doug Heckman | 42% | Rob Woodall | 58% | Feb 01 | Feb 01 | GOP (open R+16) | ||
| GA-07 | Democrat | 38% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-08 | Jim Marshall* | 47% | Austin Scott | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-08 | Jim Marshall* | 50% | Austin Scott | 50% | Feb 01 | Feb 01 | Tossup | ||
| GA-08 | Democrat | 57% | Republican | 43% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-09 | (Unopposed) | 00% | Tom Graves* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-09 | (Unopposed) | 00% | Tom Graves* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| GA-09 | Democrat | 24% | Republican | 76% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-10 | Russell Edwards | 33% | Paul Broun* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-10 | Russell Edwards | 39% | Paul Broun* | 61% | Feb 01 | Feb 01 | GOP (61% in 2008) | ||
| GA-10 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-11 | (Unopposed) | 00% | Phil Gingrey* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-11 | (Unopposed) | 00% | Phil Gingrey* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| GA-11 | Democrat | 32% | Republican | 68% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-12 | John Barrow* | 57% | Raymond McKinney | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-12 | John Barrow* | 66% | Raymond McKinney | 34% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| GA-12 | Democrat | 66% | Republican | 34% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| GA-13 | David Scott* | 69% | Mike Crane | 31% | Nov 09 | Nov 09 | 2010 Election | ||
| GA-13 | David Scott* | 69% | Mike Crane | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| GA-13 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| HI-01 | Colleen Hanabusa | 53% | Charles Djou* | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| HI-01 | Colleen Hanabusa | 55% | Charles Djou* | 44% | Feb 01 | Feb 01 | Dem (D+11) | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| HI-02 | Mazie Hirono* | 72% | John Willoughby | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| HI-02 | Mazie Hirono* | 76% | John Willoughby | 20% | Feb 01 | Feb 01 | Dem (76% in 2008) | ||
| HI-02 | Democrat | 76% | Republican | 20% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| ID-01 | Walt Minnick* | 41% | Raul Labrador | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| ID-01 | Walt Minnick* | 46% | Raul Labrador | 36% | Sep 13 | Sep 15 | Mason Dixon | ||
| ID-01 | Walt Minnick* | 50% | Raul Labrador | 50% | Feb 01 | Feb 01 | Tossup (2% diff in | ||
| ID-01 | Democrat | 51% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| ID-02 | Mike Crawford | 24% | Mike Simpson* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| ID-02 | Mike Crawford | 23% | Mike Simpson* | 51% | Sep 13 | Sep 15 | Mason Dixon | ||
| ID-02 | Mike Crawford | 29% | Mike Simpson* | 71% | Feb 01 | Feb 01 | GOP (71% in 2008) | ||
| ID-02 | Democrat | 29% | Republican | 71% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-01 | Bobby Rush* | 80% | Ray Wardingley | 16% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-01 | Bobby Rush* | 86% | Ray Wardingley | 14% | Feb 01 | Feb 01 | Dem (86% in 2008) | ||
| IL-01 | Democrat | 86% | Republican | 14% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-02 | Jesse Jackson Jr.* | 80% | Isaac Hayes | 14% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-02 | Jesse Jackson Jr.* | 89% | Isaac Hayes | 11% | Feb 01 | Feb 01 | Dem (89% in 2008) | ||
| IL-02 | Democrat | 89% | Republican | 11% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-03 | Dan Lipinski* | 70% | Michael Bendas | 24% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-03 | Dan Lipinski* | 73% | Michael Bendas | 22% | Feb 01 | Feb 01 | Dem (73% in 2008) | ||
| IL-03 | Democrat | 73% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-04 | Luis Gutierrez* | 77% | Israel Vasquez | 14% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-04 | Luis Gutierrez* | 81% | Israel Vasquez | 11% | Feb 01 | Feb 01 | Dem (81% in 2008) | ||
| IL-04 | Democrat | 81% | Republican | 11% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-05 | Michael Quigley* | 71% | David Ratowitz | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-05 | Michael Quigley* | 69% | David Ratowitz | 24% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| IL-05 | Michael Quigley* | 69% | David Ratowitz | 24% | Jan 01 | Jan 01 | Special election April 2009 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-06 | Benjamin Lowe | 36% | Peter Roskam* | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-06 | Benjamin Lowe | 42% | Peter Roskam* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| IL-06 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-07 | Danny Davis* | 81% | Mark Weiman | 16% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-07 | Danny Davis* | 85% | Mark Weiman | 15% | Feb 01 | Feb 01 | Dem (85% in 2008) | ||
| IL-07 | Democrat | 85% | Republican | 15% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-08 | Melissa Bean* | 48% | Joe Walsh | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-08 | Melissa Bean* | 60% | Joe Walsh | 40% | Feb 01 | Feb 01 | Dem (60% in 2008) | ||
| IL-08 | Democrat | 60% | Republican | 40% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-09 | Jan Schakowsky* | 66% | Joel Pollak | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-09 | Jan Schakowsky* | 75% | Joel Pollak | 22% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| IL-09 | Democrat | 75% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-10 | Daniel Seals | 49% | Robert Dold | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-10 | Daniel Seals | 53% | Robert Dold | 47% | Feb 01 | Feb 01 | Dem (open D+6) | ||
| IL-10 | Democrat | 46% | Republican | 54% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-11 | Debbie Halvorson* | 43% | Adam Kinzinger | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-11 | Debbie Halvorson* | 31% | Adam Kinzinger | 49% | Sep 28 | Sep 30 | Penn Schoen Berland | ||
| IL-11 | Debbie Halvorson* | 58% | Adam Kinzinger | 35% | Feb 01 | Feb 01 | Dem (58% in 2008) | ||
| IL-11 | Democrat | 58% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-12 | Jerry Costello* | 60% | Teri Newman | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-12 | Jerry Costello* | 71% | Teri Newman | 25% | Feb 01 | Feb 01 | Dem (71% in 2008) | ||
| IL-12 | Democrat | 71% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-13 | Scott Harper | 36% | Judy Biggert* | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-13 | Scott Harper | 49% | Judy Biggert* | 50% | Feb 01 | Feb 01 | GOP (since 1998) | ||
| IL-13 | Democrat | 44% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-14 | Bill Foster* | 45% | Randy Hultgren | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-14 | Bill Foster* | 50% | Randy Hultgren | 50% | Feb 01 | Feb 01 | Tossup | ||
| IL-14 | Democrat | 57% | Republican | 43% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-15 | David Gill | 36% | Tim Johnson* | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-15 | David Gill | 36% | Tim Johnson* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| IL-15 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-16 | George Gaulrapp | 31% | Donald Manzullo* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-16 | George Gaulrapp | 36% | Donald Manzullo* | 61% | Feb 01 | Feb 01 | GOP (61% in 2008) | ||
| IL-16 | Democrat | 36% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-17 | Phil Hare* | 43% | Bobby Schilling | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-17 | Phil Hare* | 50% | Bobby Schilling | 50% | Feb 01 | Feb 01 | Tossup | ||
| IL-17 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-18 | D.K. Hirner | 26% | Aaron Schock* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-18 | D.K. Hirner | 38% | Aaron Schock* | 59% | Feb 01 | Feb 01 | GOP (59% in 2008) | ||
| IL-18 | Democrat | 38% | Republican | 59% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IL-19 | Tim Bagwell | 29% | John Shimkus* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| IL-19 | Tim Bagwell | 33% | John Shimkus* | 65% | Feb 01 | Feb 01 | GOP (65% in 2008) | ||
| IL-19 | Democrat | 33% | Republican | 65% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-01 | Pete Visclosky* | 59% | Mark Leyva | 39% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-01 | Pete Visclosky* | 71% | Mark Leyva | 27% | Feb 01 | Feb 01 | Dem (71% in 2008) | ||
| IN-01 | Democrat | 71% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-02 | Joe Donnelly* | 48% | Jackie Walorski | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-02 | Joe Donnelly* | 48% | Jackie Walorski | 39% | Sep 29 | Oct 01 | EPIC MRA | ||
| IN-02 | Joe Donnelly* | 52% | Jackie Walorski | 35% | Aug 03 | Aug 03 | Polling Company | ||
| IN-02 | Joe Donnelly* | 67% | Jackie Walorski | 30% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| IN-02 | Democrat | 67% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-03 | Tom Hayhurst | 33% | Marlin Stutzman | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-03 | Tom Hayhurst | 43% | Marlin Stutzman | 57% | Feb 01 | Feb 01 | GOP (open R+14) | ||
| IN-03 | Democrat | 40% | Republican | 55% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-04 | David Sanders | 26% | Todd Rokita | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-04 | David Sanders | 43% | Todd Rokita | 57% | Feb 01 | Feb 01 | GOP (open R+14) | ||
| IN-04 | Democrat | 40% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-05 | Tim Crawford | 25% | Dan Burton* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-05 | Tim Crawford | 34% | Dan Burton* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| IN-05 | Democrat | 34% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-06 | Barry Welsh | 30% | Mike Pence* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-06 | Barry Welsh | 33% | Mike Pence* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| IN-06 | Democrat | 33% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-07 | Andre Carson* | 59% | Marvin Scott | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-07 | Andre Carson* | 65% | Marvin Scott | 35% | Feb 01 | Feb 01 | Dem (65% in 2008) | ||
| IN-07 | Democrat | 65% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-08 | Trent VanHaaften | 37% | Larry Bucshon | 58% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-08 | Trent VanHaaften | 46% | Larry Bucshon | 54% | Feb 01 | Feb 01 | GOP (open R+8) | ||
| IN-08 | Democrat | 65% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IN-09 | Baron Hill* | 42% | Todd Young | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| IN-09 | Baron Hill* | 58% | Todd Young | 38% | Feb 01 | Feb 01 | Dem (58% in 2008) | ||
| IN-09 | Democrat | 58% | Republican | 38% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-01 | Bruce Braley* | 49% | Benjamin Lange | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-01 | Bruce Braley* | 64% | Benjamin Lange | 36% | Feb 01 | Feb 01 | Dem (64% in 2008) | ||
| IA-01 | Democrat | 64% | Republican | 36% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-02 | David Loebsack* | 51% | Mariannette Miller-Meeks | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-02 | David Loebsack* | 50% | Mariannette Miller-Meeks | 50% | Feb 01 | Feb 01 | Tossup | ||
| IA-02 | Democrat | 57% | Republican | 39% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-03 | Leonard Boswell* | 51% | Brad Zaun | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-03 | Leonard Boswell* | 50% | Brad Zaun | 49% | Feb 01 | Feb 01 | Dem (since 1996) | ||
| IA-03 | Democrat | 56% | Republican | 42% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-04 | Bill Maske | 32% | Tom Latham* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-04 | Bill Maske | 39% | Tom Latham* | 61% | Feb 01 | Feb 01 | GOP (61% in 2008) | ||
| IA-04 | Democrat | 39% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| IA-05 | Matthew Campbell | 32% | Steve King* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| IA-05 | Matthew Campbell | 37% | Steve King* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| IA-05 | Democrat | 37% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KS-01 | Alan Jilka | 23% | Tim Huelskamp | 74% | Nov 09 | Nov 09 | 2010 Election | ||
| KS-01 | Alan Jilka | 23% | Tim Huelskamp | 65% | Aug 08 | Aug 08 | SurveyUSA | ||
| KS-01 | Alan Jilka | 38% | Tim Huelskamp | 61% | Feb 01 | Feb 01 | GOP (open R+23) | ||
| KS-01 | Democrat | 13% | Republican | 82% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KS-02 | Cheryl Hudspeth | 32% | Lynn Jenkins* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| KS-02 | Cheryl Hudspeth | 45% | Lynn Jenkins* | 54% | Feb 01 | Feb 01 | GOP (R+9) | ||
| KS-02 | Democrat | 46% | Republican | 51% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KS-03 | Stephene Moore | 38% | Kevin Yoder | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| KS-03 | Stephene Moore | 50% | Kevin Yoder | 50% | Feb 01 | Feb 01 | Tossup | ||
| KS-03 | Democrat | 56% | Republican | 40% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KS-04 | Raj Goyle | 36% | Mike Pompeo | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| KS-04 | Raj Goyle | 40% | Mike Pompeo | 50% | Sep 14 | Sep 15 | SurveyUSA | ||
| KS-04 | Raj Goyle | 42% | Mike Pompeo | 49% | Aug 11 | Aug 11 | SurveyUSA | ||
| KS-04 | Raj Goyle | 43% | Mike Pompeo | 57% | Feb 01 | Feb 01 | GOP (open R+14) | ||
| KS-04 | Democrat | 32% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-01 | Charles Kendall Hatchett | 29% | Ed Whitfield* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-01 | Charles Kendall Hatchett | 36% | Ed Whitfield* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| KY-01 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-02 | Ed Marksberry | 32% | Brett Guthrie* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-02 | Ed Marksberry | 42% | Brett Guthrie* | 57% | Feb 01 | Feb 01 | GOP (R+15) | ||
| KY-02 | Democrat | 47% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-03 | John Yarmuth* | 55% | Todd Lally | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-03 | John Yarmuth* | 53% | Todd Lally | 30% | Sep 20 | Sep 21 | Braun Research | ||
| KY-03 | John Yarmuth* | 47% | Todd Lally | 45% | Sep 01 | Sep 01 | SurveyUSA | ||
| KY-03 | John Yarmuth* | 52% | Todd Lally | 29% | Aug 09 | Aug 10 | Braun Research | ||
| KY-03 | John Yarmuth* | 59% | Todd Lally | 41% | Feb 01 | Feb 01 | Dem (59% in 2008) | ||
| KY-03 | Democrat | 59% | Republican | 41% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-04 | John Waltz | 31% | Geoff Davis* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-04 | John Waltz | 37% | Geoff Davis* | 63% | Feb 01 | Feb 01 | GOP (63% in 2008) | ||
| KY-04 | Democrat | 37% | Republican | 63% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-05 | Jim Holbert | 23% | Hal Rogers* | 77% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-05 | Jim Holbert | 42% | Hal Rogers* | 58% | Feb 01 | Feb 01 | GOP (since 1980) | ||
| KY-05 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| KY-06 | Ben Chandler* | 50% | Andy Barr | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| KY-06 | Ben Chandler* | 51% | Andy Barr | 37% | Sep 21 | Sep 22 | Braun Research | ||
| KY-06 | Ben Chandler* | 65% | Andy Barr | 35% | Feb 01 | Feb 01 | Dem (65% in 2008) | ||
| KY-06 | Democrat | 65% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-01 | Myron Katz | 19% | Steve Scalise* | 79% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-01 | Myron Katz | 34% | Steve Scalise* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| LA-01 | Democrat | 34% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-02 | Cedric Richmond | 65% | Joseph Cao* | 33% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-02 | Cedric Richmond | 49% | Joseph Cao* | 38% | Oct 02 | Oct 03 | PPP | ||
| LA-02 | Cedric Richmond | 62% | Joseph Cao* | 37% | Feb 01 | Feb 01 | Dem (D+25) | ||
| LA-02 | Democrat | 47% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-03 | Ravi Sangisetty | 36% | Jeff Landry | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-03 | Ravi Sangisetty | 44% | Jeff Landry | 56% | Feb 01 | Feb 01 | GOP (open R+12) | ||
| LA-03 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-04 | David Melville | 32% | John Fleming* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-04 | David Melville | 50% | John Fleming* | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| LA-04 | Democrat | 47% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-05 | (Unopposed) | 00% | Rodney Alexander | 79% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-05 | (Unopposed) | 43% | Rodney Alexander | 57% | Feb 01 | Feb 01 | GOP (R+14) | ||
| LA-05 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-06 | Merritt McDonald | 34% | Bill Cassidy* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-06 | Merritt McDonald | 45% | Bill Cassidy* | 55% | Feb 01 | Feb 01 | GOP (R+10) | ||
| LA-06 | Democrat | 40% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| LA-07 | (Unopposed) | 00% | Charles Boustany | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| LA-07 | (Unopposed) | 34% | Charles Boustany | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| LA-07 | Democrat | 34% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| ME-01 | Chellie Pingree* | 57% | Dean Scontras | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| ME-01 | Chellie Pingree* | 54% | Dean Scontras | 26% | Sep 27 | Sep 27 | Critical Insights | ||
| ME-01 | Chellie Pingree* | 53% | Dean Scontras | 29% | Sep 13 | Sep 13 | Critical Insights | ||
| ME-01 | Chellie Pingree* | 54% | Dean Scontras | 46% | Feb 01 | Feb 01 | Dem (D+8) | ||
| ME-01 | Democrat | 55% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| ME-02 | Mike Michaud* | 55% | Jason Levesque | 45% | Nov 09 | Nov 09 | 2010 Election | ||
| ME-02 | Mike Michaud* | 44% | Jason Levesque | 32% | Sep 27 | Sep 27 | Critical Insights | ||
| ME-02 | Mike Michaud* | 48% | Jason Levesque | 28% | Sep 13 | Sep 13 | Critical Insights | ||
| ME-02 | Mike Michaud* | 67% | Jason Levesque | 33% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| ME-02 | Democrat | 67% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-01 | Frank Kratovil* | 41% | Andy Harris | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-01 | Frank Kratovil* | 40% | Andy Harris | 43% | Sep 28 | Sep 30 | Penn Schoen Berland | ||
| MD-01 | Frank Kratovil* | 50% | Andy Harris | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| MD-01 | Democrat | 50% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-02 | Dutch Ruppersberger* | 64% | Marcelo Cardarelli | 33% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-02 | Dutch Ruppersberger* | 72% | Marcelo Cardarelli | 25% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| MD-02 | Democrat | 72% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-03 | John Sarbanes* | 61% | Jim Wilhelm | 36% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-03 | John Sarbanes* | 70% | Jim Wilhelm | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| MD-03 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-04 | Donna Edwards* | 84% | Robert Broadus | 16% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-04 | Donna Edwards* | 86% | Robert Broadus | 13% | Feb 01 | Feb 01 | Dem (86% in 2008) | ||
| MD-04 | Democrat | 86% | Republican | 13% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-05 | Steny Hoyer* | 64% | Charles Lollar | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-05 | Steny Hoyer* | 74% | Charles Lollar | 24% | Feb 01 | Feb 01 | Dem (74% in 2008) | ||
| MD-05 | Democrat | 74% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-06 | Andrew Duck | 33% | Roscoe Bartlett* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-06 | Andrew Duck | 39% | Roscoe Bartlett* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| MD-06 | Democrat | 39% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-07 | Elijah Cummings* | 75% | Frank Mirabile | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-07 | Elijah Cummings* | 80% | Frank Mirabile | 18% | Feb 01 | Feb 01 | Dem (80% in 2008) | ||
| MD-07 | Democrat | 80% | Republican | 18% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MD-08 | Chris Van Hollen* | 73% | Michael Philips | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| MD-08 | Chris Van Hollen* | 75% | Michael Philips | 22% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| MD-08 | Democrat | 75% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-01 | John Olver* | 60% | William Gunn | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-01 | John Olver* | 73% | William Gunn | 27% | Feb 01 | Feb 01 | Dem (73% in 2008) | ||
| MA-01 | Democrat | 73% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-02 | Richard Neal* | 57% | Tom Wesley | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-02 | Richard Neal* | 54% | Tom Wesley | 45% | Feb 01 | Feb 01 | Dem (since 1988) | ||
| MA-02 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-03 | Jim McGovern* | 56% | Marty Lamb | 39% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-03 | Jim McGovern* | 54% | Marty Lamb | 45% | Feb 01 | Feb 01 | Dem (since 1996) | ||
| MA-03 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-04 | Barney Frank* | 54% | Sean Bielat | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-04 | Barney Frank* | 68% | Sean Bielat | 25% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| MA-04 | Democrat | 68% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-05 | Niki Tsongas* | 55% | Jon Golnik | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-05 | Niki Tsongas* | 54% | Jon Golnik | 46% | Feb 01 | Feb 01 | Dem (D+8) | ||
| MA-05 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-06 | John Tierney* | 57% | Bill Hudak | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-06 | John Tierney* | 70% | Bill Hudak | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| MA-06 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-07 | Ed Markey* | 66% | Gerry Dembrowski | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-07 | Ed Markey* | 76% | Gerry Dembrowski | 24% | Feb 01 | Feb 01 | Dem (76% in 2008) | ||
| MA-07 | Democrat | 76% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-08 | Mike Capuano** | 100% | (Unopposed) | 00% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-08 | Mike Capuano** | 66% | (Unopposed) | 34% | Feb 01 | Feb 01 | Dem (since 1998) | ||
| MA-08 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-09 | Stephen Lynch* | 68% | Vernon Harrison | 26% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-09 | Stephen Lynch* | 55% | Vernon Harrison | 44% | Feb 01 | Feb 01 | Dem (D+11) | ||
| MA-09 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MA-10 | Bill Keating | 47% | Jeff Perry | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| MA-10 | Bill Keating | 52% | Jeff Perry | 47% | Feb 01 | Feb 01 | Dem (open D+5) | ||
| MA-10 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-01 | Gary McDowell | 41% | Dan Benishek | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-01 | Gary McDowell | 50% | Dan Benishek | 50% | Feb 01 | Feb 01 | Tossup | ||
| MI-01 | Democrat | 65% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-02 | Fred Johnson | 32% | Bill Huizenga | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-02 | Fred Johnson | 46% | Bill Huizenga | 53% | Feb 01 | Feb 01 | GOP (open R+7) | ||
| MI-02 | Democrat | 35% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-03 | Pat Miles | 37% | Justin Amash | 60% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-03 | Pat Miles | 47% | Justin Amash | 53% | Feb 01 | Feb 01 | GOP (open R+6) | ||
| MI-03 | Democrat | 35% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-04 | Jerry Campbell | 31% | Dave Camp* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-04 | Jerry Campbell | 36% | Dave Camp* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| MI-04 | Democrat | 36% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-05 | Dale Kildee* | 53% | John Kuipec | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-05 | Dale Kildee* | 70% | John Kuipec | 27% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| MI-05 | Democrat | 70% | Republican | 27% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-06 | Don Cooney | 34% | Fred Upton* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-06 | Don Cooney | 39% | Fred Upton* | 59% | Feb 01 | Feb 01 | GOP (59% in 2008) | ||
| MI-06 | Democrat | 39% | Republican | 59% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-07 | Mark Schauer* | 45% | Tim Walberg | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-07 | Mark Schauer* | 41% | Tim Walberg | 41% | Sep 25 | Sep 27 | Penn Schoen Berland | ||
| MI-07 | Mark Schauer* | 50% | Tim Walberg | 50% | Feb 01 | Feb 01 | Tossup | ||
| MI-07 | Democrat | 49% | Republican | 46% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-08 | Lance Enderle | 34% | Mike Rogers* | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-08 | Lance Enderle | 50% | Mike Rogers* | 50% | Feb 01 | Feb 01 | Tossup | ||
| MI-08 | Democrat | 40% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-09 | Gary Peters* | 50% | Rocky Raczowski | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-09 | Gary Peters* | 50% | Rocky Raczowski | 50% | Feb 01 | Feb 01 | Tossup | ||
| MI-09 | Democrat | 52% | Republican | 43% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-10 | Henry Yanez | 25% | Candice Miller* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-10 | Henry Yanez | 31% | Candice Miller* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| MI-10 | Democrat | 31% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-11 | Natalie Mosher | 38% | Thad McCotter* | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-11 | Natalie Mosher | 50% | Thad McCotter* | 50% | Feb 01 | Feb 01 | Tossup | ||
| MI-11 | Democrat | 45% | Republican | 51% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-12 | Sander Levin* | 61% | Don Volaric | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-12 | Sander Levin* | 72% | Don Volaric | 24% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| MI-12 | Democrat | 72% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-13 | Hansen Clarke | 79% | John Hauler | 19% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-13 | Hansen Clarke | 65% | John Hauler | 34% | Feb 01 | Feb 01 | Dem (open D+31) | ||
| MI-13 | Democrat | 74% | Republican | 19% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-14 | John Conyers Jr.* | 77% | Don Ukrainec | 20% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-14 | John Conyers Jr.* | 67% | Don Ukrainec | 33% | Feb 01 | Feb 01 | Dem (since 1964) | ||
| MI-14 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MI-15 | John Dingell* | 57% | Rob Steele | 40% | Nov 09 | Nov 09 | 2010 Election | ||
| MI-15 | John Dingell* | 49% | Rob Steele | 30% | Sep 15 | Sep 16 | Detroit News | ||
| MI-15 | John Dingell* | 71% | Rob Steele | 25% | Feb 01 | Feb 01 | Dem (71% in 2008) | ||
| MI-15 | Democrat | 71% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MN-01 | Tim Walz* | 50% | Randy Demmer | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| MN-01 | Tim Walz* | 63% | Randy Demmer | 33% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| MN-01 | Democrat | 63% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MN-02 | Shelly Madore | 37% | John Kline* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| MN-02 | Shelly Madore | 48% | John Kline* | 52% | Feb 01 | Feb 01 | GOP (R+4) | ||
| MN-02 | Democrat | 43% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MN-03 | Jim Meffert | 37% | Erik Paulsen* | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| MN-03 | Jim Meffert | 50% | Erik Paulsen* | 50% | Feb 01 | Feb 01 | Tossup | ||
| MN-03 | Democrat | 41% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MN-04 | Betty McCollum* | 50% | Teresa Collett | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| MN-04 | Betty McCollum* | 69% | Teresa Collett | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| MN-04 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MN-05 | Keith Ellison* | 68% | Joel Demos | 24% | Nov 09 | Nov 09 | 2010 Election | ||
| MN-05 | Keith Ellison* | 71% | Joel Demos | 22% | Feb 01 | Feb 01 | Dem (71% in 2008) | ||
| MN-05 | Democrat | 71% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MN-06 | Tarryl Clark | 40% | Michele Bachmann* | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| MN-06 | Tarryl Clark | 40% | Michele Bachmann* | 49% | Sep 13 | Sep 15 | SurveyUSA | ||
| MN-06 | Tarryl Clark | 40% | Michele Bachmann* | 49% | _MN-06!I | 01% | Sep 13 | Sep 15 | SurveyUSA |
| MN-06 | Tarryl Clark | 39% | Michele Bachmann* | 48% | Jul 09 | Jul 11 | SurveyUSA | ||
| MN-06 | Tarryl Clark | 50% | Michele Bachmann* | 50% | Feb 01 | Feb 01 | Tossup (2% diff in | ||
| MN-06 | Democrat | 44% | Republican | 46% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MN-07 | Collin Peterson* | 55% | Lee Byberg | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| MN-07 | Collin Peterson* | 72% | Lee Byberg | 28% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| MN-07 | Democrat | 72% | Republican | 28% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MN-08 | Jim Oberstar* | 47% | Chip Cravaack | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| MN-08 | Jim Oberstar* | 68% | Chip Cravaack | 32% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| MN-08 | Democrat | 68% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MS-01 | Travis Childers* | 41% | Alan Nunnelee | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| MS-01 | Travis Childers* | 50% | Alan Nunnelee | 50% | Feb 01 | Feb 01 | Tossup | ||
| MS-01 | Democrat | 54% | Republican | 44% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MS-02 | Bennie Thompson* | 62% | Bill Marcy | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| MS-02 | Bennie Thompson* | 69% | Bill Marcy | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| MS-02 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MS-03 | Joel Gill | 31% | Gregg Harper* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| MS-03 | Joel Gill | 37% | Gregg Harper* | 63% | Feb 01 | Feb 01 | GOP (63% in 2008) | ||
| MS-03 | Democrat | 37% | Republican | 63% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MS-04 | Gene Taylor* | 47% | Steven Palazzo | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| MS-04 | Gene Taylor* | 75% | Steven Palazzo | 25% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| MS-04 | Democrat | 75% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MO-01 | William Lacy Clay Jr.* | 74% | Robyn Hamlin | 24% | Nov 09 | Nov 09 | 2010 Election | ||
| MO-01 | William Lacy Clay Jr.* | 63% | Robyn Hamlin | 36% | Feb 01 | Feb 01 | Dem (D+27) | ||
| MO-01 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MO-02 | Arthur Lieber | 29% | Todd Akin* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| MO-02 | Arthur Lieber | 36% | Todd Akin* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| MO-02 | Democrat | 36% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MO-03 | Russ Carnahan* | 49% | Ed Martin | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| MO-03 | Russ Carnahan* | 66% | Ed Martin | 30% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| MO-03 | Democrat | 66% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MO-04 | Ike Skelton* | 45% | Vicky Hartzler | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| MO-04 | Ike Skelton* | 47% | Vicky Hartzler | 35% | Aug 22 | Aug 22 | Missouri State U. | ||
| MO-04 | Ike Skelton* | 66% | Vicky Hartzler | 34% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| MO-04 | Democrat | 66% | Republican | 34% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MO-05 | Emanuel Cleaver* | 53% | Jacob Turk | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| MO-05 | Emanuel Cleaver* | 64% | Jacob Turk | 36% | Feb 01 | Feb 01 | Dem (64% in 2008) | ||
| MO-05 | Democrat | 64% | Republican | 36% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MO-06 | Clint Hylton | 31% | Sam Graves* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| MO-06 | Clint Hylton | 37% | Sam Graves* | 59% | Feb 01 | Feb 01 | GOP (59% in 2008) | ||
| MO-06 | Democrat | 37% | Republican | 59% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MO-07 | Scott Eckersley | 30% | Billy Long | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| MO-07 | Scott Eckersley | 24% | Billy Long | 51% | Aug 22 | Aug 22 | Missouri State U. | ||
| MO-07 | Scott Eckersley | 41% | Billy Long | 58% | Feb 01 | Feb 01 | GOP (open R+17) | ||
| MO-07 | Democrat | 28% | Republican | 68% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MO-08 | Tommy Sowers | 29% | Jo-Ann Emerson* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| MO-08 | Tommy Sowers | 26% | Jo-Ann Emerson* | 71% | Feb 01 | Feb 01 | GOP (71% in 2008) | ||
| MO-08 | Democrat | 26% | Republican | 71% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MO-09 | (Unopposed) | 00% | Blaine Luetkemeyer* | 78% | Nov 09 | Nov 09 | 2010 Election | ||
| MO-09 | (Unopposed) | 00% | Blaine Luetkemeyer* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| MO-09 | Democrat | 47% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| MT-AL | Dennis McDonald | 34% | Denny Rehberg* | 61% | Nov 09 | Nov 09 | 2010 Election | ||
| MT-AL | Dennis McDonald | 32% | Denny Rehberg* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| MT-AL | Democrat | 32% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NE-01 | Ivy Harper | 29% | Jeff Fortenberry* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| NE-01 | Ivy Harper | 30% | Jeff Fortenberry* | 70% | Feb 01 | Feb 01 | GOP (70% in 2008) | ||
| NE-01 | Democrat | 30% | Republican | 70% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NE-02 | Tom White | 39% | Lee Terry* | 61% | Nov 09 | Nov 09 | 2010 Election | ||
| NE-02 | Tom White | 47% | Lee Terry* | 53% | Feb 01 | Feb 01 | GOP (since 1998) | ||
| NE-02 | Democrat | 48% | Republican | 52% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NE-03 | Rebekah Davis | 18% | Adrian Smith* | 70% | Nov 09 | Nov 09 | 2010 Election | ||
| NE-03 | Rebekah Davis | 23% | Adrian Smith* | 77% | Feb 01 | Feb 01 | GOP (77% in 2008) | ||
| NE-03 | Democrat | 23% | Republican | 77% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NV-01 | Shelley Berkley* | 62% | Kenneth Wegner | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| NV-01 | Shelley Berkley* | 68% | Kenneth Wegner | 28% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| NV-01 | Democrat | 68% | Republican | 28% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NV-02 | Nancy Price | 33% | Dean Heller* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| NV-02 | Nancy Price | 47% | Dean Heller* | 52% | Feb 01 | Feb 01 | GOP (R+5) | ||
| NV-02 | Democrat | 41% | Republican | 52% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NV-03 | Dina Titus* | 47% | Joe Heck | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| NV-03 | Dina Titus* | 44% | Joe Heck | 47% | Sep 25 | Sep 27 | Penn Schoen Berland | ||
| NV-03 | Dina Titus* | 47% | Joe Heck | 43% | Sep 07 | Sep 09 | Mason Dixon | ||
| NV-03 | Dina Titus* | 47% | Joe Heck | 43% | Sep 08 | Sep 08 | Mason Dixon | ||
| NV-03 | Dina Titus* | 43% | Joe Heck | 42% | Aug 09 | Aug 11 | Mason Dixon | ||
| NV-03 | Dina Titus* | 42% | Joe Heck | 40% | Jul 12 | Jul 14 | Mason Dixon | ||
| NV-03 | Dina Titus* | 44% | Joe Heck | 49% | Apr 05 | Apr 07 | Mason Dixon | ||
| NV-03 | Dina Titus* | 50% | Joe Heck | 50% | Feb 01 | Feb 01 | Tossup | ||
| NV-03 | Democrat | 48% | Republican | 42% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NH-01 | Carol Shea-Porter* | 43% | Frank Guinta | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| NH-01 | Carol Shea-Porter* | 39% | Frank Guinta | 49% | Sep 23 | Sep 29 | U. of New Hampshire | ||
| NH-01 | Carol Shea-Porter* | 40% | Frank Guinta | 50% | Sep 22 | Sep 26 | ARG | ||
| NH-01 | Carol Shea-Porter* | 50% | Frank Guinta | 50% | Feb 01 | Feb 01 | Tossup | ||
| NH-01 | Democrat | 52% | Republican | 46% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NH-02 | Ann McLane Kuster | 47% | Charlie Bass | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| NH-02 | Ann McLane Kuster | 38% | Charlie Bass | 43% | Sep 23 | Sep 29 | U. of New Hampshire | ||
| NH-02 | Ann McLane Kuster | 36% | Charlie Bass | 38% | Sep 22 | Sep 26 | ARG | ||
| NH-02 | Ann McLane Kuster | 50% | Charlie Bass | 50% | Feb 01 | Feb 01 | Tossup | ||
| NH-02 | Democrat | 57% | Republican | 41% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-01 | Rob Andrews* | 63% | Dale Glading | 35% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-01 | Rob Andrews* | 72% | Dale Glading | 26% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| NJ-01 | Democrat | 72% | Republican | 26% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-02 | Gary Stein | 31% | Frank LoBiondo* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-02 | Gary Stein | 39% | Frank LoBiondo* | 59% | Feb 01 | Feb 01 | GOP (59% in 2008) | ||
| NJ-02 | Democrat | 39% | Republican | 59% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-03 | John Adler* | 47% | Jon Runyan | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-03 | John Adler* | 42% | Jon Runyan | 39% | Sep 24 | Sep 28 | Braun Research | ||
| NJ-03 | John Adler* | 42% | Jon Runyan | 39% | Sep 24 | Sep 28 | Monmouth U. | ||
| NJ-03 | John Adler* | 43% | Jon Runyan | 39% | Sep 23 | Sep 26 | Rutgers/Eagleton | ||
| NJ-03 | John Adler* | 35% | Jon Runyan | 28% | Aug 08 | Aug 08 | Rutgers/Eagleton | ||
| NJ-03 | John Adler* | 50% | Jon Runyan | 50% | Feb 01 | Feb 01 | Tossup | ||
| NJ-03 | Democrat | 52% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-04 | Howard Kleinhendler | 28% | Chris Smith* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-04 | Howard Kleinhendler | 33% | Chris Smith* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| NJ-04 | Democrat | 33% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-05 | Tod Thiese | 33% | Scott Garrett* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-05 | Tod Thiese | 46% | Scott Garrett* | 53% | Feb 01 | Feb 01 | GOP (R+7) | ||
| NJ-05 | Democrat | 42% | Republican | 56% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-06 | Frank Pallone* | 54% | Anna Little | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-06 | Frank Pallone* | 53% | Anna Little | 41% | Oct 02 | Oct 05 | Monmouth U. | ||
| NJ-06 | Frank Pallone* | 67% | Anna Little | 32% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| NJ-06 | Democrat | 67% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-07 | Ed Potosnak | 41% | Leonard Lance* | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-07 | Ed Potosnak | 48% | Leonard Lance* | 51% | Feb 01 | Feb 01 | GOP (R+3) | ||
| NJ-07 | Democrat | 41% | Republican | 51% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-08 | Bill Pascrell* | 63% | Roland Straten | 36% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-08 | Bill Pascrell* | 71% | Roland Straten | 28% | Feb 01 | Feb 01 | Dem (71% in 2008) | ||
| NJ-08 | Democrat | 71% | Republican | 28% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-09 | Steve Rothman* | 61% | Michael Agosta | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-09 | Steve Rothman* | 68% | Michael Agosta | 32% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| NJ-09 | Democrat | 68% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-10 | Don Payne* | 85% | Michael Alonso | 13% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-10 | Don Payne* | 66% | Michael Alonso | 33% | Feb 01 | Feb 01 | Dem (since 1988) | ||
| NJ-10 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-11 | Douglas Herbert | 31% | Rodney Frelinghuysen* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-11 | Douglas Herbert | 37% | Rodney Frelinghuysen* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| NJ-11 | Democrat | 37% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-12 | Rush Holt* | 53% | Scott Sipprelle | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-12 | Rush Holt* | 62% | Scott Sipprelle | 36% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| NJ-12 | Democrat | 62% | Republican | 36% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NJ-13 | Albio Sires* | 74% | Henrietta Dwyer | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| NJ-13 | Albio Sires* | 75% | Henrietta Dwyer | 22% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| NJ-13 | Democrat | 75% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NM-01 | Martin Heinrich* | 52% | Jon Barela | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| NM-01 | Martin Heinrich* | 48% | Jon Barela | 41% | Sep 27 | Sep 30 | Research and Polling | ||
| NM-01 | Martin Heinrich* | 50% | Jon Barela | 43% | Sep 25 | Sep 26 | PPP | ||
| NM-01 | Martin Heinrich* | 47% | Jon Barela | 41% | Aug 23 | Aug 27 | Research and Polling | ||
| NM-01 | Martin Heinrich* | 45% | Jon Barela | 51% | Jul 22 | Jul 25 | SurveyUSA | ||
| NM-01 | Martin Heinrich* | 50% | Jon Barela | 50% | Feb 01 | Feb 01 | Tossup | ||
| NM-01 | Democrat | 55% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NM-02 | Harry Teague* | 45% | Steve Pearce | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| NM-02 | Harry Teague* | 42% | Steve Pearce | 46% | Sep 28 | Sep 30 | Penn Schoen Berland | ||
| NM-02 | Harry Teague* | 44% | Steve Pearce | 45% | Sep 27 | Sep 30 | Research and Polling | ||
| NM-02 | Harry Teague* | 47% | Steve Pearce | 48% | Sep 25 | Sep 26 | PPP | ||
| NM-02 | Harry Teague* | 45% | Steve Pearce | 42% | Aug 23 | Aug 27 | Research and Polling | ||
| NM-02 | Harry Teague* | 41% | Steve Pearce | 43% | Feb 18 | Feb 20 | PPP | ||
| NM-02 | Harry Teague* | 50% | Steve Pearce | 50% | Feb 01 | Feb 01 | Tossup | ||
| NM-02 | Democrat | 56% | Republican | 44% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NM-03 | Ben Lujan* | 57% | Tom Mullins | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| NM-03 | Ben Lujan* | 50% | Tom Mullins | 50% | Feb 01 | Feb 01 | Tossup | ||
| NM-03 | Democrat | 56% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-01 | Tim Bishop* | 50% | Randy Altschuler | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-01 | Tim Bishop* | 58% | Randy Altschuler | 42% | Feb 01 | Feb 01 | Dem (58% in 2008) | ||
| NY-01 | Democrat | 58% | Republican | 42% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-02 | Steve Israel* | 56% | John Gomez | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-02 | Steve Israel* | 66% | John Gomez | 34% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| NY-02 | Democrat | 66% | Republican | 34% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-03 | Howard Kudler | 28% | Peter King* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-03 | Howard Kudler | 36% | Peter King* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| NY-03 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-04 | Carolyn McCarthy | 54% | Francis Becker | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-04 | Carolyn McCarthy | 64% | Francis Becker | 36% | Feb 01 | Feb 01 | Dem (64% in 2008) | ||
| NY-04 | Democrat | 64% | Republican | 36% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-05 | Gary Ackerman* | 62% | James Milano | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-05 | Gary Ackerman* | 70% | James Milano | 28% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| NY-05 | Democrat | 70% | Republican | 28% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-06 | Gregory Meeks* | 85% | Asher Taub | 15% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-06 | Gregory Meeks* | 68% | Asher Taub | 32% | Feb 01 | Feb 01 | Dem (since 1998) | ||
| NY-06 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-07 | Joseph Crowley* | 80% | Ken Reynolds | 19% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-07 | Joseph Crowley* | 85% | Ken Reynolds | 15% | Feb 01 | Feb 01 | Dem (85% in 2008) | ||
| NY-07 | Democrat | 85% | Republican | 15% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-08 | Jerrold Nadler* | 75% | Susan Kone | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-08 | Jerrold Nadler* | 80% | Susan Kone | 20% | Feb 01 | Feb 01 | Dem (80% in 2008) | ||
| NY-08 | Democrat | 80% | Republican | 20% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-09 | Anthony Weiner* | 59% | Bob Turner | 41% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-09 | Anthony Weiner* | 52% | Bob Turner | 47% | Feb 01 | Feb 01 | Dem (since 1998) | ||
| NY-09 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-10 | Ed Towns* | 91% | Diana Muniz | 07% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-10 | Ed Towns* | 94% | Diana Muniz | 06% | Feb 01 | Feb 01 | Dem (94% in 2008) | ||
| NY-10 | Democrat | 94% | Republican | 06% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-11 | Yvette Clarke* | 90% | Hugh Carr | 10% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-11 | Yvette Clarke* | 92% | Hugh Carr | 07% | Feb 01 | Feb 01 | Dem (92% in 2008) | ||
| NY-11 | Democrat | 92% | Republican | 07% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-12 | Nydia Velazquez* | 93% | (Unopposed) | 00% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-12 | Nydia Velazquez* | 89% | (Unopposed) | 11% | Feb 01 | Feb 01 | Dem (89% in 2008) | ||
| NY-12 | Democrat | 89% | Republican | 11% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-13 | Mike McMahon* | 48% | Michael Grimm | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-13 | Mike McMahon* | 61% | Michael Grimm | 33% | Feb 01 | Feb 01 | Dem (61% in 2008) | ||
| NY-13 | Democrat | 61% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-14 | Carolyn Maloney* | 75% | Ryan Brumberg | 22% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-14 | Carolyn Maloney* | 79% | Ryan Brumberg | 19% | Feb 01 | Feb 01 | Dem (79% in 2008) | ||
| NY-14 | Democrat | 79% | Republican | 19% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-15 | Charlie Rangel* | 80% | Michel Faulkner | 10% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-15 | Charlie Rangel* | 88% | Michel Faulkner | 09% | Feb 01 | Feb 01 | Dem (88% in 2008) | ||
| NY-15 | Democrat | 88% | Republican | 09% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-16 | Jose Serrano* | 95% | Frank Della Valle | 05% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-16 | Jose Serrano* | 97% | Frank Della Valle | 03% | Feb 01 | Feb 01 | Dem (97% in 2008) | ||
| NY-16 | Democrat | 97% | Republican | 03% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-17 | Eliot Engel* | 71% | Anthony Mele | 24% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-17 | Eliot Engel* | 79% | Anthony Mele | 21% | Feb 01 | Feb 01 | Dem (79% in 2008) | ||
| NY-17 | Democrat | 79% | Republican | 21% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-18 | Nita Lowey* | 62% | James Russell | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-18 | Nita Lowey* | 68% | James Russell | 32% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| NY-18 | Democrat | 68% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-19 | John Hall* | 47% | Nan Hayworth | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-19 | John Hall* | 58% | Nan Hayworth | 42% | Feb 01 | Feb 01 | Dem (58% in 2008) | ||
| NY-19 | Democrat | 58% | Republican | 42% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-20 | Scott Murphy* | 45% | Christopher Gibson | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-20 | Scott Murphy* | 54% | Christopher Gibson | 37% | Sep 12 | Sep 14 | Siena Coll. | ||
| NY-20 | Scott Murphy* | 50% | Christopher Gibson | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| NY-20 | Scott Murphy* | 50% | Christopher Gibson | 49% | Jan 01 | Jan 01 | Special election March 2009 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-21 | Paul Tonko* | 59% | Theodore Danz | 41% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-21 | Paul Tonko* | 62% | Theodore Danz | 35% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| NY-21 | Democrat | 62% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-22 | Maurice Hinchey* | 52% | George Phillips | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-22 | Maurice Hinchey* | 66% | George Phillips | 34% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| NY-22 | Democrat | 66% | Republican | 34% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-23 | Bill Owens* | 48% | Matt Doheny | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-23 | Bill Owens* | 50% | Matt Doheny | 50% | Feb 01 | Feb 01 | Tossup (2% diff in | ||
| NY-23 | Bill Owens* | 48% | Matt Doheny | 46% | Jan 01 | Jan 01 | Special election November 2009 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-24 | Mike Arcuri* | 47% | Richard Hanna | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-24 | Mike Arcuri* | 45% | Richard Hanna | 40% | Sep 13 | Sep 15 | Siena Coll. | ||
| NY-24 | Mike Arcuri* | 48% | Richard Hanna | 40% | Sep 13 | Sep 15 | Siena Coll. | ||
| NY-24 | Mike Arcuri* | 50% | Richard Hanna | 50% | Feb 01 | Feb 01 | Tossup (2% diff in | ||
| NY-24 | Democrat | 51% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-25 | Dan Maffei* | 49% | Ann Marie Beurkle | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-25 | Dan Maffei* | 50% | Ann Marie Beurkle | 50% | Feb 01 | Feb 01 | Tossup | ||
| NY-25 | Democrat | 55% | Republican | 42% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-26 | Philip Fedele | 26% | Chris Lee* | 74% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-26 | Philip Fedele | 47% | Chris Lee* | 53% | Feb 01 | Feb 01 | GOP (R+6) | ||
| NY-26 | Democrat | 40% | Republican | 55% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-27 | Brian Higgins* | 61% | Leonard Roberto | 39% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-27 | Brian Higgins* | 74% | Leonard Roberto | 23% | Feb 01 | Feb 01 | Dem (74% in 2008) | ||
| NY-27 | Democrat | 74% | Republican | 23% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-28 | Louise Slaughter* | 66% | Jill Rowland | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-28 | Louise Slaughter* | 78% | Jill Rowland | 22% | Feb 01 | Feb 01 | Dem (78% in 2008) | ||
| NY-28 | Democrat | 78% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NY-29 | Matt Zeller | 44% | Tom Reed | 56% | Nov 09 | Nov 09 | 2010 Election | ||
| NY-29 | Matt Zeller | 30% | Tom Reed | 44% | Sep 14 | Sep 16 | Siena Coll. | ||
| NY-29 | Matt Zeller | 50% | Tom Reed | 50% | Feb 01 | Feb 01 | Tossup (2% diff in | ||
| NY-29 | Democrat | 51% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-01 | G.K. Butterfield* | 59% | Ashley Woolard | 41% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-01 | G.K. Butterfield* | 70% | Ashley Woolard | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| NC-01 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-02 | Bob Etheridge* | 49% | Renee Ellmers | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-02 | Bob Etheridge* | 67% | Renee Ellmers | 31% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| NC-02 | Democrat | 67% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-03 | Johnny Rouse | 26% | Walter Jones* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-03 | Johnny Rouse | 34% | Walter Jones* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| NC-03 | Democrat | 34% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-04 | David Price* | 57% | B.J. Lawson | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-04 | David Price* | 63% | B.J. Lawson | 37% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| NC-04 | Democrat | 63% | Republican | 37% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-05 | William Kennedy | 34% | Virginia Foxx* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-05 | William Kennedy | 42% | Virginia Foxx* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| NC-05 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-06 | Gregory Scott Turner | 25% | Howard Coble* | 75% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-06 | Gregory Scott Turner | 33% | Howard Coble* | 67% | Feb 01 | Feb 01 | GOP (67% in 2008) | ||
| NC-06 | Democrat | 33% | Republican | 67% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-07 | Mike McIntyre* | 54% | Ilario Pantano | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-07 | Mike McIntyre* | 45% | Ilario Pantano | 46% | Sep 24 | Sep 26 | SurveyUSA | ||
| NC-07 | Mike McIntyre* | 69% | Ilario Pantano | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| NC-07 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-08 | Larry Kissell* | 53% | Harold Johnson | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-08 | Larry Kissell* | 46% | Harold Johnson | 45% | Oct 01 | Oct 03 | SurveyUSA | ||
| NC-08 | Larry Kissell* | 41% | Harold Johnson | 35% | Jun 13 | Jun 13 | PPP | ||
| NC-08 | Larry Kissell* | 50% | Harold Johnson | 50% | Feb 01 | Feb 01 | Tossup | ||
| NC-08 | Democrat | 55% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-09 | Jeff Doctor | 31% | Sue Myrick* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-09 | Jeff Doctor | 36% | Sue Myrick* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| NC-09 | Democrat | 36% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-10 | Jeff Gregory | 29% | Patrick McHenry* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-10 | Jeff Gregory | 42% | Patrick McHenry* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| NC-10 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-11 | Heath Shuler* | 54% | Jeff Miller | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-11 | Heath Shuler* | 45% | Jeff Miller | 44% | Jun 25 | Jun 25 | SurveyUSA | ||
| NC-11 | Heath Shuler* | 62% | Jeff Miller | 36% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| NC-11 | Democrat | 62% | Republican | 36% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-12 | Mel Watt* | 64% | Greg Dority | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-12 | Mel Watt* | 72% | Greg Dority | 28% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| NC-12 | Democrat | 72% | Republican | 28% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| NC-13 | Brad Miller* | 55% | William Randall | 45% | Nov 09 | Nov 09 | 2010 Election | ||
| NC-13 | Brad Miller* | 66% | William Randall | 34% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| NC-13 | Democrat | 66% | Republican | 34% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| ND-AL | Earl Pomeroy* | 45% | Rick Berg | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| ND-AL | Earl Pomeroy* | 45% | Rick Berg | 48% | Sep 20 | Sep 21 | Rasmussen | ||
| ND-AL | Earl Pomeroy* | 44% | Rick Berg | 53% | Aug 11 | Aug 11 | Rasmussen | ||
| ND-AL | Earl Pomeroy* | 46% | Rick Berg | 49% | Jul 21 | Jul 21 | Rasmussen | ||
| ND-AL | Earl Pomeroy* | 44% | Rick Berg | 51% | Jun 16 | Jun 16 | Rasmussen | ||
| ND-AL | Earl Pomeroy* | 43% | Rick Berg | 52% | May 19 | May 19 | Rasmussen | ||
| ND-AL | Earl Pomeroy* | 45% | Rick Berg | 55% | Feb 01 | Feb 01 | GOP (since 1992) | ||
| ND-AL | Democrat | 62% | Republican | 38% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-01 | Steven Driehaus* | 45% | Steve Chabot | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-01 | Steven Driehaus* | 41% | Steve Chabot | 53% | Sep 28 | Sep 29 | SurveyUSA | ||
| OH-01 | Steven Driehaus* | 50% | Steve Chabot | 50% | Feb 01 | Feb 01 | Tossup (2% diff in | ||
| OH-01 | Democrat | 51% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-02 | Surya Yalamanchili | 35% | Jean Schmidt* | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-02 | Surya Yalamanchili | 43% | Jean Schmidt* | 56% | Feb 01 | Feb 01 | GOP (R+13) | ||
| OH-02 | Democrat | 37% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-03 | Joe Roberts | 31% | Mike Turner* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-03 | Joe Roberts | 36% | Mike Turner* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| OH-03 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-04 | Doug Litt | 25% | Jim Jordan* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-04 | Doug Litt | 35% | Jim Jordan* | 65% | Feb 01 | Feb 01 | GOP (65% in 2008) | ||
| OH-04 | Democrat | 35% | Republican | 65% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-05 | Caleb Finkenbiner | 26% | Bob Latta* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-05 | Caleb Finkenbiner | 36% | Bob Latta* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| OH-05 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-06 | Charlie Wilson* | 45% | Bill Johnson | 50% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-06 | Charlie Wilson* | 62% | Bill Johnson | 33% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| OH-06 | Democrat | 62% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-07 | Bill Conner | 32% | Steve Austria* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-07 | Bill Conner | 42% | Steve Austria* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| OH-07 | Democrat | 42% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-08 | Justin Coussoule | 30% | John Boehner* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-08 | Justin Coussoule | 32% | John Boehner* | 68% | Feb 01 | Feb 01 | GOP (68% in 2008) | ||
| OH-08 | Democrat | 32% | Republican | 68% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-09 | Marcy Kaptur* | 59% | Rich Iott | 41% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-09 | Marcy Kaptur* | 74% | Rich Iott | 26% | Feb 01 | Feb 01 | Dem (74% in 2008) | ||
| OH-09 | Democrat | 74% | Republican | 26% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-10 | Dennis Kucinich* | 53% | Peter Corrigan | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-10 | Dennis Kucinich* | 54% | Peter Corrigan | 46% | Feb 01 | Feb 01 | Dem (since 1996) | ||
| OH-10 | Democrat | 57% | Republican | 39% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-11 | Marcia Fudge* | 82% | Thomas Pekare | 18% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-11 | Marcia Fudge* | 85% | Thomas Pekare | 15% | Feb 01 | Feb 01 | Dem (85% in 2008) | ||
| OH-11 | Democrat | 85% | Republican | 15% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-12 | Paula Brooks | 37% | Pat Tiberi* | 60% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-12 | Paula Brooks | 50% | Pat Tiberi* | 50% | Feb 01 | Feb 01 | Tossup | ||
| OH-12 | Democrat | 42% | Republican | 55% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-13 | Betty Sutton* | 55% | Tom Ganley | 45% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-13 | Betty Sutton* | 65% | Tom Ganley | 35% | Feb 01 | Feb 01 | Dem (65% in 2008) | ||
| OH-13 | Democrat | 65% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-14 | William O'Neill | 31% | Steve LaTourette* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-14 | William O'Neill | 39% | Steve LaTourette* | 58% | Feb 01 | Feb 01 | GOP (58% in 2008) | ||
| OH-14 | Democrat | 39% | Republican | 58% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-15 | Mary Jo Kilroy* | 38% | Steve Stivers | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-15 | Mary Jo Kilroy* | 38% | Steve Stivers | 47% | Sep 28 | Sep 30 | Penn Schoen Berland | ||
| OH-15 | Mary Jo Kilroy* | 50% | Steve Stivers | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| OH-15 | Democrat | 46% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-16 | John Boccieri* | 41% | Jim Renacci | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-16 | John Boccieri* | 39% | Jim Renacci | 42% | Sep 25 | Sep 27 | Penn Schoen Berland | ||
| OH-16 | John Boccieri* | 50% | Jim Renacci | 50% | Feb 01 | Feb 01 | Tossup | ||
| OH-16 | Democrat | 54% | Republican | 46% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-17 | Tim Ryan* | 54% | Jim Graham | 30% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-17 | Tim Ryan* | 78% | Jim Graham | 22% | Feb 01 | Feb 01 | Dem (78% in 2008) | ||
| OH-17 | Democrat | 78% | Republican | 22% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OH-18 | Zack Space* | 40% | Bob Gibbs | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| OH-18 | Zack Space* | 60% | Bob Gibbs | 40% | Feb 01 | Feb 01 | Dem (60% in 2008) | ||
| OH-18 | Democrat | 60% | Republican | 40% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OK-01 | (Unopposed) | 00% | John Sullivan* | 77% | Nov 09 | Nov 09 | 2010 Election | ||
| OK-01 | (Unopposed) | 00% | John Sullivan* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| OK-01 | Democrat | 34% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OK-02 | Dan Boren* | 57% | Charles Thompson | 43% | Nov 09 | Nov 09 | 2010 Election | ||
| OK-02 | Dan Boren* | 70% | Charles Thompson | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| OK-02 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OK-03 | Frankie Robbins | 22% | Frank Lucas* | 78% | Nov 09 | Nov 09 | 2010 Election | ||
| OK-03 | Frankie Robbins | 23% | Frank Lucas* | 70% | Feb 01 | Feb 01 | GOP (70% in 2008) | ||
| OK-03 | Democrat | 23% | Republican | 70% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OK-04 | (Unopposed) | 00% | Tom Cole* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| OK-04 | (Unopposed) | 00% | Tom Cole* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| OK-04 | Democrat | 29% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OK-05 | Billy Coyle | 35% | James Lankford | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| OK-05 | Billy Coyle | 43% | James Lankford | 56% | Feb 01 | Feb 01 | GOP (open R+13) | ||
| OK-05 | Democrat | 34% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OR-01 | David Wu* | 55% | Rob Cornilles | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| OR-01 | David Wu* | 54% | Rob Cornilles | 46% | Feb 01 | Feb 01 | Dem (since 1998) | ||
| OR-01 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OR-02 | Joyce Segers | 26% | Greg Walden* | 74% | Nov 09 | Nov 09 | 2010 Election | ||
| OR-02 | Joyce Segers | 26% | Greg Walden* | 70% | Feb 01 | Feb 01 | GOP (70% in 2008) | ||
| OR-02 | Democrat | 26% | Republican | 70% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OR-03 | Earl Blumenauer* | 69% | Delia Lopez | 12% | Nov 09 | Nov 09 | 2010 Election | ||
| OR-03 | Earl Blumenauer* | 75% | Delia Lopez | 21% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| OR-03 | Democrat | 75% | Republican | 21% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OR-04 | Peter DeFazio* | 53% | Art Robinson | 45% | Nov 09 | Nov 09 | 2010 Election | ||
| OR-04 | Peter DeFazio* | 51% | Art Robinson | 49% | Feb 01 | Feb 01 | Dem (since 1986) | ||
| OR-04 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| OR-05 | Kurt Schrader* | 51% | Scott Bruun | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| OR-05 | Kurt Schrader* | 50% | Scott Bruun | 50% | Feb 01 | Feb 01 | Tossup | ||
| OR-05 | Democrat | 55% | Republican | 38% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-01 | Bob Brady* | 10% | Pia Varma | 00% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-01 | Bob Brady* | 91% | Pia Varma | 09% | Feb 01 | Feb 01 | Dem (91% in 2008) | ||
| PA-01 | Democrat | 91% | Republican | 09% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-02 | Chaka Fattah* | 89% | Rick Hellberg | 11% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-02 | Chaka Fattah* | 89% | Rick Hellberg | 11% | Feb 01 | Feb 01 | Dem (89% in 2008) | ||
| PA-02 | Democrat | 89% | Republican | 11% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-03 | Kathy Dahlkemper* | 44% | Mike Kelly | 56% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-03 | Kathy Dahlkemper* | 36% | Mike Kelly | 49% | Sep 25 | Sep 27 | Penn Schoen Berland | ||
| PA-03 | Kathy Dahlkemper* | 38% | Mike Kelly | 44% | Sep 14 | Sep 19 | Franklin+Marshall Coll. | ||
| PA-03 | Kathy Dahlkemper* | 50% | Mike Kelly | 50% | Feb 01 | Feb 01 | Tossup | ||
| PA-03 | Democrat | 52% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-04 | Jason Altmire* | 51% | Keith Rothfuss | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-04 | Jason Altmire* | 50% | Keith Rothfuss | 50% | Feb 01 | Feb 01 | Tossup | ||
| PA-04 | Democrat | 56% | Republican | 44% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-05 | Michael Pipe | 28% | G.T. Thompson* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-05 | Michael Pipe | 45% | G.T. Thompson* | 54% | Feb 01 | Feb 01 | GOP (R+9) | ||
| PA-05 | Democrat | 41% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-06 | Manan Trivedi | 43% | Jim Gerlach* | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-06 | Manan Trivedi | 50% | Jim Gerlach* | 50% | Feb 01 | Feb 01 | Tossup | ||
| PA-06 | Democrat | 48% | Republican | 52% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-07 | Bryan Lentz | 44% | Patrick Meehan | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-07 | Bryan Lentz | 50% | Patrick Meehan | 50% | Feb 01 | Feb 01 | Tossup | ||
| PA-07 | Democrat | 60% | Republican | 40% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-08 | Patrick Murphy* | 46% | Mike Fitzpatrick | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-08 | Patrick Murphy* | 35% | Mike Fitzpatrick | 49% | Sep 14 | Sep 19 | Franklin+Marshall Coll. | ||
| PA-08 | Patrick Murphy* | 50% | Mike Fitzpatrick | 50% | Feb 01 | Feb 01 | Tossup | ||
| PA-08 | Democrat | 57% | Republican | 42% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-09 | Tom Conners | 27% | Bill Shuster* | 73% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-09 | Tom Conners | 36% | Bill Shuster* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| PA-09 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-10 | Chris Carney* | 45% | Thomas Marino | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-10 | Chris Carney* | 43% | Thomas Marino | 40% | Sep 26 | Sep 30 | Lycoming Coll. | ||
| PA-10 | Chris Carney* | 36% | Thomas Marino | 40% | Sep 22 | Sep 23 | Critical Insights | ||
| PA-10 | Chris Carney* | 50% | Thomas Marino | 50% | Feb 01 | Feb 01 | Tossup | ||
| PA-10 | Democrat | 56% | Republican | 44% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-11 | Paul Kanjorski* | 45% | Lou Barletta | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-11 | Paul Kanjorski* | 32% | Lou Barletta | 43% | Sep 22 | Sep 23 | Critical Insights | ||
| PA-11 | Paul Kanjorski* | 52% | Lou Barletta | 48% | Feb 01 | Feb 01 | Dem (since 1984) | ||
| PA-11 | Democrat | 52% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-12 | Mark Critz* | 51% | Tim Burns | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-12 | Mark Critz* | 50% | Tim Burns | 50% | Feb 01 | Feb 01 | Tossup | ||
| PA-12 | Democrat | 58% | Republican | 42% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-13 | Allyson Schwartz* | 56% | Carson Adcock | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-13 | Allyson Schwartz* | 63% | Carson Adcock | 35% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| PA-13 | Democrat | 63% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-14 | Mike Doyle* | 69% | Melissa Haluszczak | 28% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-14 | Mike Doyle* | 59% | Melissa Haluszczak | 40% | Feb 01 | Feb 01 | Dem (since 1994) | ||
| PA-14 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-15 | John Callahan | 39% | Charlie Dent* | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-15 | John Callahan | 38% | Charlie Dent* | 49% | Sep 11 | Sep 16 | Muhlenberg Coll. | ||
| PA-15 | John Callahan | 33% | Charlie Dent* | 45% | Apr 19 | Apr 27 | Muhlenberg Coll. | ||
| PA-15 | John Callahan | 41% | Charlie Dent* | 59% | Feb 01 | Feb 01 | GOP (59% in 2008) | ||
| PA-15 | Democrat | 41% | Republican | 59% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-16 | Lois Herr | 35% | Joe Pitts* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-16 | Lois Herr | 46% | Joe Pitts* | 54% | Feb 01 | Feb 01 | GOP (since 1996) | ||
| PA-16 | Democrat | 39% | Republican | 56% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-17 | Tim Holden* | 56% | Dave Argall | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-17 | Tim Holden* | 64% | Dave Argall | 36% | Feb 01 | Feb 01 | Dem (64% in 2008) | ||
| PA-17 | Democrat | 64% | Republican | 36% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-18 | Dan Connolly | 33% | Tim Murphy* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-18 | Dan Connolly | 36% | Tim Murphy* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| PA-18 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| PA-19 | Ryan Sanders | 23% | Todd Platts* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| PA-19 | Ryan Sanders | 33% | Todd Platts* | 67% | Feb 01 | Feb 01 | GOP (67% in 2008) | ||
| PA-19 | Democrat | 33% | Republican | 67% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| RI-01 | David Cicilline | 51% | John Loughlin | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| RI-01 | David Cicilline | 39% | John Loughlin | 21% | Sep 27 | Sep 29 | Brown U. | ||
| RI-01 | David Cicilline | 49% | John Loughlin | 29% | Sep 22 | Sep 26 | Fleming and Assocs. | ||
| RI-01 | David Cicilline | 49% | John Loughlin | 26% | Sep 15 | Sep 17 | Quest Research | ||
| RI-01 | David Cicilline | 56% | John Loughlin | 43% | Feb 01 | Feb 01 | Dem (open D+13) | ||
| RI-01 | Democrat | 69% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| RI-02 | Jim Langevin* | 60% | Mark Zaccaria | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| RI-02 | Jim Langevin* | 47% | Mark Zaccaria | 13% | Sep 27 | Sep 29 | Brown U. | ||
| RI-02 | Jim Langevin* | 54% | Mark Zaccaria | 24% | Sep 22 | Sep 26 | Fleming and Assocs. | ||
| RI-02 | Jim Langevin* | 54% | Mark Zaccaria | 20% | Sep 20 | Sep 20 | Quest Research | ||
| RI-02 | Jim Langevin* | 70% | Mark Zaccaria | 30% | Feb 01 | Feb 01 | Dem (70% in 2008) | ||
| RI-02 | Democrat | 70% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| SC-01 | Ben Frasier | 29% | Tim Scott | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| SC-01 | Ben Frasier | 45% | Tim Scott | 55% | Feb 01 | Feb 01 | GOP (open R+10) | ||
| SC-01 | Democrat | 48% | Republican | 52% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| SC-02 | Robert Miller | 44% | Joe Wilson* | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| SC-02 | Robert Miller | 45% | Joe Wilson* | 54% | Feb 01 | Feb 01 | GOP (R+9) | ||
| SC-02 | Democrat | 46% | Republican | 54% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| SC-03 | Jane Ballard Dyer | 36% | Jeff Duncan | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| SC-03 | Jane Ballard Dyer | 41% | Jeff Duncan | 58% | Feb 01 | Feb 01 | GOP (open R+17) | ||
| SC-03 | Democrat | 35% | Republican | 65% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| SC-04 | Paul Corden | 29% | Trey Gowdy | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| SC-04 | Paul Corden | 42% | Trey Gowdy | 57% | Feb 01 | Feb 01 | GOP (open R+15) | ||
| SC-04 | Democrat | 37% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| SC-05 | John Spratt* | 45% | Mick Mulvaney | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| SC-05 | John Spratt* | 62% | Mick Mulvaney | 37% | Feb 01 | Feb 01 | Dem (62% in 2008) | ||
| SC-05 | Democrat | 62% | Republican | 37% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| SC-06 | Jim Clyburn* | 63% | Jim Pratt | 36% | Nov 09 | Nov 09 | 2010 Election | ||
| SC-06 | Jim Clyburn* | 68% | Jim Pratt | 32% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| SC-06 | Democrat | 68% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| SD-AL | Stephanie Herseth Sandlin* | 46% | Kristi Noem | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| SD-AL | Stephanie Herseth Sandlin* | 47% | Kristi Noem | 45% | Sep 08 | Sep 08 | Rasmussen | ||
| SD-AL | Stephanie Herseth Sandlin* | 42% | Kristi Noem | 51% | Aug 03 | Aug 03 | Rasmussen | ||
| SD-AL | Stephanie Herseth Sandlin* | 44% | Kristi Noem | 49% | Jul 06 | Jul 06 | Rasmussen | ||
| SD-AL | Stephanie Herseth Sandlin* | 41% | Kristi Noem | 53% | Jun 10 | Jun 10 | Rasmussen | ||
| SD-AL | Stephanie Herseth Sandlin* | 46% | Kristi Noem | 43% | May 27 | May 27 | Rasmussen | ||
| SD-AL | Stephanie Herseth Sandlin* | 68% | Kristi Noem | 32% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| SD-AL | Democrat | 68% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TN-01 | Michael Clark | 17% | Phil Roe* | 81% | Nov 09 | Nov 09 | 2010 Election | ||
| TN-01 | Michael Clark | 24% | Phil Roe* | 72% | Feb 01 | Feb 01 | GOP (72% in 2008) | ||
| TN-01 | Democrat | 24% | Republican | 72% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TN-02 | Dave Hancock | 15% | Jimmy Duncan Jr.* | 82% | Nov 09 | Nov 09 | 2010 Election | ||
| TN-02 | Dave Hancock | 22% | Jimmy Duncan Jr.* | 78% | Feb 01 | Feb 01 | GOP (78% in 2008) | ||
| TN-02 | Democrat | 22% | Republican | 78% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TN-03 | John Wolfe Jr. | 28% | Charles Fleischmann | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| TN-03 | John Wolfe Jr. | 43% | Charles Fleischmann | 56% | Feb 01 | Feb 01 | GOP (open R+13) | ||
| TN-03 | Democrat | 28% | Republican | 69% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TN-04 | Lincoln Davis* | 39% | Scott DesJarlais | 57% | Nov 09 | Nov 09 | 2010 Election | ||
| TN-04 | Lincoln Davis* | 59% | Scott DesJarlais | 38% | Feb 01 | Feb 01 | Dem (59% in 2008) | ||
| TN-04 | Democrat | 59% | Republican | 38% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TN-05 | Jim Cooper* | 56% | David Hall | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| TN-05 | Jim Cooper* | 66% | David Hall | 31% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| TN-05 | Democrat | 66% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TN-06 | Brett Carter | 29% | Diane Black | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| TN-06 | Brett Carter | 43% | Diane Black | 56% | Feb 01 | Feb 01 | GOP (open R+13) | ||
| TN-06 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TN-07 | Greg Rabidoux | 25% | Marsha Blackburn* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| TN-07 | Greg Rabidoux | 31% | Marsha Blackburn* | 69% | Feb 01 | Feb 01 | GOP (69% in 2008) | ||
| TN-07 | Democrat | 31% | Republican | 69% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TN-08 | Roy Herron | 39% | Stephen Fincher | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| TN-08 | Roy Herron | 47% | Stephen Fincher | 53% | Feb 01 | Feb 01 | GOP (open R+6) | ||
| TN-08 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TN-09 | Steve Cohen* | 74% | Charlotte Bergmann | 25% | Nov 09 | Nov 09 | 2010 Election | ||
| TN-09 | Steve Cohen* | 61% | Charlotte Bergmann | 38% | Feb 01 | Feb 01 | Dem (D+23) | ||
| TN-09 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-01 | (Unopposed) | 00% | Louie Gohmert* | 90% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-01 | (Unopposed) | 00% | Louie Gohmert* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| TX-01 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-02 | (Unopposed) | 00% | Ted Poe* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-02 | (Unopposed) | 00% | Ted Poe* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| TX-02 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-03 | John Lingenfelder | 31% | Sam Johnson* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-03 | John Lingenfelder | 38% | Sam Johnson* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| TX-03 | Democrat | 38% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-04 | VaLinda Hathcox | 22% | Ralph Hall* | 73% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-04 | VaLinda Hathcox | 29% | Ralph Hall* | 69% | Feb 01 | Feb 01 | GOP (69% in 2008) | ||
| TX-04 | Democrat | 29% | Republican | 69% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-05 | Tom Berry | 28% | Jeb Hensarling* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-05 | Tom Berry | 41% | Jeb Hensarling* | 58% | Feb 01 | Feb 01 | GOP (R+17) | ||
| TX-05 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-06 | David Kozad | 31% | Joe Barton* | 66% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-06 | David Kozad | 36% | Joe Barton* | 62% | Feb 01 | Feb 01 | GOP (62% in 2008) | ||
| TX-06 | Democrat | 36% | Republican | 62% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-07 | (Unopposed) | 00% | John Culberson* | 100% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-07 | (Unopposed) | 00% | John Culberson* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| TX-07 | Democrat | 42% | Republican | 56% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-08 | Kent Hargett | 18% | Kevin Brady* | 80% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-08 | Kent Hargett | 25% | Kevin Brady* | 72% | Feb 01 | Feb 01 | GOP (72% in 2008) | ||
| TX-08 | Democrat | 25% | Republican | 72% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-09 | Al Green* | 76% | Steve Mueller | 23% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-09 | Al Green* | 61% | Steve Mueller | 39% | Feb 01 | Feb 01 | Dem (D+22) | ||
| TX-09 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-10 | Ted Ankrum | 65% | Michael McCaul* | 33% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-10 | Ted Ankrum | 45% | Michael McCaul* | 55% | Feb 01 | Feb 01 | GOP (R+10) | ||
| TX-10 | Democrat | 43% | Republican | 54% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-11 | James Quillan | 15% | Mike Conaway* | 81% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-11 | James Quillan | 36% | Mike Conaway* | 64% | Feb 01 | Feb 01 | GOP (R+28) | ||
| TX-11 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-12 | Tracey Smith | 25% | Kay Granger* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-12 | Tracey Smith | 31% | Kay Granger* | 67% | Feb 01 | Feb 01 | GOP (67% in 2008) | ||
| TX-12 | Democrat | 31% | Republican | 67% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-13 | (Unopposed) | 00% | Mac Thornberry* | 87% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-13 | (Unopposed) | 00% | Mac Thornberry* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| TX-13 | Democrat | 22% | Republican | 78% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-14 | Robert Pruett | 24% | Ron Paul* | 76% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-14 | Robert Pruett | 41% | Ron Paul* | 59% | Feb 01 | Feb 01 | GOP (since 1996) | ||
| TX-14 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-15 | Ruben Hinojosa* | 56% | Eddie Zamora | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-15 | Ruben Hinojosa* | 66% | Eddie Zamora | 32% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| TX-15 | Democrat | 66% | Republican | 32% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-16 | Silvestre Reyes* | 58% | Tim Besco | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-16 | Silvestre Reyes* | 55% | Tim Besco | 45% | Feb 01 | Feb 01 | Dem (since 1996) | ||
| TX-16 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-17 | Chet Edwards* | 37% | Bill Flores | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-17 | Chet Edwards* | 40% | Bill Flores | 60% | Feb 01 | Feb 01 | Dem (since 1990) | ||
| TX-17 | Democrat | 53% | Republican | 45% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-18 | Sheila Jackson Lee* | 70% | John Faulk | 27% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-18 | Sheila Jackson Lee* | 77% | John Faulk | 21% | Feb 01 | Feb 01 | Dem (77% in 2008) | ||
| TX-18 | Democrat | 77% | Republican | 21% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-19 | Andy Wilson | 19% | Randy Neugebauer* | 78% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-19 | Andy Wilson | 25% | Randy Neugebauer* | 72% | Feb 01 | Feb 01 | GOP (72% in 2008) | ||
| TX-19 | Democrat | 25% | Republican | 72% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-20 | Charlie Gonzalez* | 64% | Clayton Trotter | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-20 | Charlie Gonzalez* | 72% | Clayton Trotter | 25% | Feb 01 | Feb 01 | Dem (72% in 2008) | ||
| TX-20 | Democrat | 72% | Republican | 25% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-21 | Laney Melnick | 28% | Lamar Smith* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-21 | Laney Melnick | 43% | Lamar Smith* | 57% | Feb 01 | Feb 01 | GOP (since 1986) | ||
| TX-21 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-22 | Kesha Rogers | 30% | Pete Olson* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-22 | Kesha Rogers | 43% | Pete Olson* | 56% | Feb 01 | Feb 01 | GOP (R+13) | ||
| TX-22 | Democrat | 45% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-23 | Ciro Rodriguez* | 44% | Quico Canseco | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-23 | Ciro Rodriguez* | 50% | Quico Canseco | 50% | Feb 01 | Feb 01 | Tossup | ||
| TX-23 | Democrat | 56% | Republican | 42% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-24 | (Unopposed) | 00% | Kenny Marchant* | 82% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-24 | (Unopposed) | 00% | Kenny Marchant* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| TX-24 | Democrat | 41% | Republican | 56% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-25 | Lloyd Doggett* | 53% | Donna Campbell | 45% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-25 | Lloyd Doggett* | 66% | Donna Campbell | 30% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| TX-25 | Democrat | 66% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-26 | Neil Durrance | 31% | Michael Burgess* | 67% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-26 | Neil Durrance | 37% | Michael Burgess* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| TX-26 | Democrat | 37% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-27 | Solomon Ortiz* | 47% | Blake Farenthold | 48% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-27 | Solomon Ortiz* | 58% | Blake Farenthold | 38% | Feb 01 | Feb 01 | Dem (58% in 2008) | ||
| TX-27 | Democrat | 58% | Republican | 38% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-28 | Henry Cuellar* | 56% | Bryan Underwood | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-28 | Henry Cuellar* | 69% | Bryan Underwood | 29% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| TX-28 | Democrat | 69% | Republican | 29% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-29 | Gene Green* | 65% | Roy Morales | 34% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-29 | Gene Green* | 75% | Roy Morales | 24% | Feb 01 | Feb 01 | Dem (75% in 2008) | ||
| TX-29 | Democrat | 75% | Republican | 24% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-30 | Eddie Bernice Johnson* | 76% | Stephen Broden | 22% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-30 | Eddie Bernice Johnson* | 82% | Stephen Broden | 16% | Feb 01 | Feb 01 | Dem (82% in 2008) | ||
| TX-30 | Democrat | 82% | Republican | 16% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-31 | (Unopposed) | 00% | John Carter* | 83% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-31 | (Unopposed) | 00% | John Carter* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| TX-31 | Democrat | 37% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| TX-32 | Grier Raggio | 35% | Pete Sessions* | 63% | Nov 09 | Nov 09 | 2010 Election | ||
| TX-32 | Grier Raggio | 46% | Pete Sessions* | 54% | Feb 01 | Feb 01 | GOP (since 1996) | ||
| TX-32 | Democrat | 41% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| UT-01 | Morgan Bowen | 24% | Rob Bishop* | 69% | Nov 09 | Nov 09 | 2010 Election | ||
| UT-01 | Morgan Bowen | 31% | Rob Bishop* | 65% | Feb 01 | Feb 01 | GOP (65% in 2008) | ||
| UT-01 | Democrat | 31% | Republican | 65% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| UT-02 | Jim Matheson* | 51% | Morgan Philpot | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| UT-02 | Jim Matheson* | 63% | Morgan Philpot | 35% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| UT-02 | Democrat | 63% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| UT-03 | Karen Hyer | 23% | Jason Chaffetz* | 72% | Nov 09 | Nov 09 | 2010 Election | ||
| UT-03 | Karen Hyer | 28% | Jason Chaffetz* | 66% | Feb 01 | Feb 01 | GOP (66% in 2008) | ||
| UT-03 | Democrat | 28% | Republican | 66% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VT-AL | Peter Welch* | 64% | Paul Beaudry | 32% | Nov 09 | Nov 09 | 2010 Election | ||
| VT-AL | Peter Welch* | 64% | Paul Beaudry | 30% | Sep 13 | Sep 13 | Rasmussen | ||
| VT-AL | Peter Welch* | 56% | Paul Beaudry | 43% | Feb 01 | Feb 01 | Dem (D+13) | ||
| VT-AL | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-01 | Krystal Ball | 35% | Rob Wittman* | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-01 | Krystal Ball | 46% | Rob Wittman* | 53% | Feb 01 | Feb 01 | GOP (R+7) | ||
| VA-01 | Democrat | 42% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-02 | Glenn Nye* | 43% | Scott Rigell | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-02 | Glenn Nye* | 36% | Scott Rigell | 42% | Sep 25 | Sep 27 | Penn Schoen Berland | ||
| VA-02 | Glenn Nye* | 50% | Scott Rigell | 50% | Feb 01 | Feb 01 | Tossup | ||
| VA-02 | Democrat | 52% | Republican | 48% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-03 | Bobby Scott* | 70% | Chuck Smith | 27% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-03 | Bobby Scott* | 60% | Chuck Smith | 40% | Feb 01 | Feb 01 | Dem (since 1992) | ||
| VA-03 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-04 | Wynne LeGrow | 38% | Randy Forbes* | 62% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-04 | Wynne LeGrow | 40% | Randy Forbes* | 60% | Feb 01 | Feb 01 | GOP (60% in 2008) | ||
| VA-04 | Democrat | 40% | Republican | 60% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-05 | Tom Perriello* | 47% | Robert Hurt | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-05 | Tom Perriello* | 44% | Robert Hurt | 45% | Sep 28 | Sep 30 | Penn Schoen Berland | ||
| VA-05 | Tom Perriello* | 35% | Robert Hurt | 58% | Sep 24 | Sep 27 | SurveyUSA | ||
| VA-05 | Tom Perriello* | 35% | Robert Hurt | 61% | Aug 31 | Sep 01 | SurveyUSA | ||
| VA-05 | Tom Perriello* | 35% | Robert Hurt | 58% | Jul 16 | Jul 19 | SurveyUSA | ||
| VA-05 | Tom Perriello* | 44% | Robert Hurt | 44% | Feb 05 | Feb 10 | PPP | ||
| VA-05 | Tom Perriello* | 50% | Robert Hurt | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| VA-05 | Democrat | 50% | Republican | 49% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-06 | (Unopposed) | 00% | Bob Goodlatte* | 77% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-06 | (Unopposed) | 00% | Bob Goodlatte* | 99% | Feb 01 | Feb 01 | GOP (unopposed) | ||
| VA-06 | Democrat | 37% | Republican | 61% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-07 | Rick Waugh | 34% | Eric Cantor* | 59% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-07 | Rick Waugh | 37% | Eric Cantor* | 63% | Feb 01 | Feb 01 | GOP (63% in 2008) | ||
| VA-07 | Democrat | 37% | Republican | 63% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-08 | Jim Moran* | 61% | Patrick Murray | 37% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-08 | Jim Moran* | 68% | Patrick Murray | 30% | Feb 01 | Feb 01 | Dem (68% in 2008) | ||
| VA-08 | Democrat | 68% | Republican | 30% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-09 | Rick Boucher* | 47% | Morgan Griffith | 51% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-09 | Rick Boucher* | 53% | Morgan Griffith | 38% | Sep 27 | Sep 29 | SurveyUSA | ||
| VA-09 | Rick Boucher* | 50% | Morgan Griffith | 40% | Aug 31 | Sep 02 | SurveyUSA | ||
| VA-09 | Rick Boucher* | 44% | Morgan Griffith | 55% | Feb 01 | Feb 01 | Dem (since 1982) | ||
| VA-09 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-10 | Jeff Barnett | 34% | Frank Wolf* | 64% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-10 | Jeff Barnett | 39% | Frank Wolf* | 59% | Feb 01 | Feb 01 | GOP (59% in 2008) | ||
| VA-10 | Democrat | 39% | Republican | 59% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| VA-11 | Gerry Connolly* | 50% | Keith Fimian | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| VA-11 | Gerry Connolly* | 50% | Keith Fimian | 50% | Feb 01 | Feb 01 | Tossup | ||
| VA-11 | Democrat | 55% | Republican | 43% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WA-01 | Jay Inslee* | 56% | James Watkins | 44% | Nov 09 | Nov 09 | 2010 Election | ||
| WA-01 | Jay Inslee* | 69% | James Watkins | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| WA-01 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WA-02 | Rick Larsen* | 51% | John Koster | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| WA-02 | Rick Larsen* | 50% | John Koster | 47% | Sep 26 | Sep 28 | SurveyUSA | ||
| WA-02 | Rick Larsen* | 46% | John Koster | 50% | Aug 31 | Sep 02 | SurveyUSA | ||
| WA-02 | Rick Larsen* | 63% | John Koster | 37% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| WA-02 | Democrat | 63% | Republican | 37% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WA-03 | Denny Heck | 47% | Jaime Herrera | 53% | Nov 09 | Nov 09 | 2010 Election | ||
| WA-03 | Denny Heck | 43% | Jaime Herrera | 52% | Sep 12 | Sep 14 | SurveyUSA | ||
| WA-03 | Denny Heck | 41% | Jaime Herrera | 54% | Aug 24 | Aug 24 | SurveyUSA | ||
| WA-03 | Denny Heck | 50% | Jaime Herrera | 50% | Feb 01 | Feb 01 | Tossup | ||
| WA-03 | Democrat | 64% | Republican | 36% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WA-04 | Jay Clough | 32% | Doc Hastings* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| WA-04 | Jay Clough | 37% | Doc Hastings* | 63% | Feb 01 | Feb 01 | GOP (63% in 2008) | ||
| WA-04 | Democrat | 37% | Republican | 63% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WA-05 | Daryl Romeyn | 35% | Cathy McMorris Rodgers* | 65% | Nov 09 | Nov 09 | 2010 Election | ||
| WA-05 | Daryl Romeyn | 35% | Cathy McMorris Rodgers* | 65% | Feb 01 | Feb 01 | GOP (65% in 2008) | ||
| WA-05 | Democrat | 35% | Republican | 65% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WA-06 | Norm Dicks* | 58% | Doug Cloud | 42% | Nov 09 | Nov 09 | 2010 Election | ||
| WA-06 | Norm Dicks* | 67% | Doug Cloud | 33% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| WA-06 | Democrat | 67% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WA-07 | Jim McDermott* | 100% | (Unopposed | 00% | Nov 09 | Nov 09 | 2010 Election | ||
| WA-07 | Jim McDermott* | 99% | (Unopposed | 00% | Feb 01 | Feb 01 | Dem (unopposed) | ||
| WA-07 | Democrat | 84% | Republican | 16% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WA-08 | Suzan DelBene | 46% | Dave Reichert* | 54% | Nov 09 | Nov 09 | 2010 Election | ||
| WA-08 | Suzan DelBene | 45% | Dave Reichert* | 52% | Sep 27 | Sep 29 | SurveyUSA | ||
| WA-08 | Suzan DelBene | 41% | Dave Reichert* | 54% | Aug 31 | Sep 02 | SurveyUSA | ||
| WA-08 | Suzan DelBene | 50% | Dave Reichert* | 50% | Feb 01 | Feb 01 | Tossup (1% diff in | ||
| WA-08 | Democrat | 49% | Republican | 50% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WA-09 | Adam Smith* | 54% | Dick Muri | 46% | Nov 09 | Nov 09 | 2010 Election | ||
| WA-09 | Adam Smith* | 49% | Dick Muri | 46% | Sep 14 | Sep 16 | SurveyUSA | ||
| WA-09 | Adam Smith* | 66% | Dick Muri | 34% | Feb 01 | Feb 01 | Dem (66% in 2008) | ||
| WA-09 | Democrat | 66% | Republican | 34% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WV-01 | Mike Oliverio | 50% | David McKinley | 49% | Nov 09 | Nov 09 | 2010 Election | ||
| WV-01 | Mike Oliverio | 45% | David McKinley | 54% | Feb 01 | Feb 01 | GOP (open R+9) | ||
| WV-01 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WV-02 | Virginia Lynch-Graf | 30% | Shelley Capito* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| WV-02 | Virginia Lynch-Graf | 46% | Shelley Capito* | 54% | Feb 01 | Feb 01 | GOP (R+8) | ||
| WV-02 | Democrat | 43% | Republican | 57% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WV-03 | Nick Rahall* | 55% | Eliott Maynard | 45% | Nov 09 | Nov 09 | 2010 Election | ||
| WV-03 | Nick Rahall* | 67% | Eliott Maynard | 33% | Feb 01 | Feb 01 | Dem (67% in 2008) | ||
| WV-03 | Democrat | 67% | Republican | 33% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WI-01 | John Heckenlively | 30% | Paul Ryan* | 68% | Nov 09 | Nov 09 | 2010 Election | ||
| WI-01 | John Heckenlively | 35% | Paul Ryan* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| WI-01 | Democrat | 35% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WI-02 | Tammy Baldwin* | 62% | Chad Lee | 38% | Nov 09 | Nov 09 | 2010 Election | ||
| WI-02 | Tammy Baldwin* | 69% | Chad Lee | 31% | Feb 01 | Feb 01 | Dem (69% in 2008) | ||
| WI-02 | Democrat | 69% | Republican | 31% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WI-03 | Ron Kind* | 50% | Dan Kapanke | 47% | Nov 09 | Nov 09 | 2010 Election | ||
| WI-03 | Ron Kind* | 63% | Dan Kapanke | 35% | Feb 01 | Feb 01 | Dem (63% in 2008) | ||
| WI-03 | Democrat | 63% | Republican | 35% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WI-04 | Gwen Moore* | 69% | Dan Sebring | 30% | Nov 09 | Nov 09 | 2010 Election | ||
| WI-04 | Gwen Moore* | 61% | Dan Sebring | 39% | Feb 01 | Feb 01 | Dem (D+22) | ||
| WI-04 | Democrat | 100% | Republican | 0% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WI-05 | Todd Kolosso | 27% | Jim Sensenbrenner* | 70% | Nov 09 | Nov 09 | 2010 Election | ||
| WI-05 | Todd Kolosso | 44% | Jim Sensenbrenner* | 56% | Feb 01 | Feb 01 | GOP (since 1978) | ||
| WI-05 | Democrat | 0% | Republican | 100% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WI-06 | Joseph Kallas | 29% | Tom Petri* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| WI-06 | Joseph Kallas | 36% | Tom Petri* | 64% | Feb 01 | Feb 01 | GOP (64% in 2008) | ||
| WI-06 | Democrat | 36% | Republican | 64% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WI-07 | Julie Lassa | 44% | Sean Duffy | 52% | Nov 09 | Nov 09 | 2010 Election | ||
| WI-07 | Julie Lassa | 50% | Sean Duffy | 50% | Feb 01 | Feb 01 | Tossup | ||
| WI-07 | Democrat | 61% | Republican | 39% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WI-08 | Steve Kagen* | 45% | Reid Ribble | 55% | Nov 09 | Nov 09 | 2010 Election | ||
| WI-08 | Steve Kagen* | 50% | Reid Ribble | 50% | Feb 01 | Feb 01 | Tossup | ||
| WI-08 | Democrat | 54% | Republican | 46% | Jan 01 | Jan 01 | Election 2008 | ||
| CD | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| WY-AL | David Wendt | 25% | Cynthia Lummis* | 71% | Nov 09 | Nov 09 | 2010 Election | ||
| WY-AL | David Wendt | 29% | Cynthia Lummis* | 61% | Sep 30 | Sep 30 | Rasmussen | ||
| WY-AL | David Wendt | 29% | Cynthia Lummis* | 59% | Jul 26 | Jul 28 | Mason Dixon | ||
| WY-AL | David Wendt | 40% | Cynthia Lummis* | 60% | Feb 01 | Feb 01 | GOP (R+20) | ||
| WY-AL | Democrat | 43% | Republican | 53% | Jan 01 | Jan 01 | Election 2008 | ||
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