Below we have a list of all the polls used on this site. Only nonpartisan polls are used; polls taken by pollsters paid for by one of the parties are intentionally omitted. The dates given are when the poll started and ended. The polls for each state are sorted in descending order of their midpoints. Incumbents are denoted by an asterisk.
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, 2012 = day 1.0) and the second is the poll length in days.
The site also has a page describing the Senate 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.
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Arizona | Richard Carmona | 46% | Jeff Flake | 50% | Nov 06 | Nov 06 | Election 2012 | ||
| Arizona | Richard Carmona | 46% | Jeff Flake | 51% | Nov 02 | Nov 03 | PPP | ||
| Arizona | Richard Carmona | 44% | Jeff Flake | 50% | Oct 21 | Oct 21 | Rasmussen | ||
| Arizona | Richard Carmona | 44% | Jeff Flake | 40% | Oct 04 | Oct 10 | Rocky Mtn Poll | ||
| Arizona | Richard Carmona | 45% | Jeff Flake | 43% | Oct 01 | Oct 03 | PPP | ||
| Arizona | Richard Carmona | 40% | Jeff Flake | 43% | Sep 25 | Sep 26 | Moore Consulting | ||
| Arizona | Richard Carmona | 41% | Jeff Flake | 47% | Sep 25 | Sep 25 | Rasmussen | ||
| Arizona | Richard Carmona | 43% | Jeff Flake | 44% | Sep 07 | Sep 09 | PPP | ||
| Arizona | Richard Carmona | 38% | Jeff Flake | 38% | Jul 23 | Jul 25 | PPP | ||
| Arizona | Richard Carmona | 31% | Jeff Flake | 47% | Jun 26 | Jun 26 | Rasmussen | ||
| Arizona | Richard Carmona | 41% | Jeff Flake | 43% | Jun 04 | Jun 05 | PPP | ||
| Arizona | Richard Carmona | 35% | Jeff Flake | 48% | May 17 | May 20 | PPP | ||
| Arizona | Richard Carmona | 34% | Jeff Flake | 47% | Mar 13 | Mar 13 | Rasmussen | ||
| Arizona | Richard Carmona | 29% | Jeff Flake | 42% | Feb 19 | Feb 20 | Marist Coll. | ||
| Arizona | Richard Carmona | 35% | Jeff Flake | 46% | Feb 17 | Feb 19 | PPP | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| California | Dianne Feinstein* | 61% | Elizabeth Emken | 39% | Nov 06 | Nov 06 | Election 2012 | ||
| California | Dianne Feinstein* | 54% | Elizabeth Emken | 33% | Oct 25 | Oct 30 | Field Poll | ||
| California | Dianne Feinstein* | 51% | Elizabeth Emken | 32% | Oct 21 | Oct 28 | Pepperdine U. | ||
| California | Dianne Feinstein* | 53% | Elizabeth Emken | 38% | Oct 15 | Oct 21 | USC | ||
| California | Dianne Feinstein* | 56% | Elizabeth Emken | 32% | Oct 11 | Oct 15 | Princeton Survey | ||
| California | Dianne Feinstein* | 60% | Elizabeth Emken | 34% | Oct 10 | Oct 15 | Reason-Rupe | ||
| California | Dianne Feinstein* | 48% | Elizabeth Emken | 31% | Oct 07 | Oct 10 | Pepperdine U. | ||
| California | Dianne Feinstein* | 54% | Elizabeth Emken | 35% | Oct 07 | Oct 09 | SurveyUSA | ||
| California | Dianne Feinstein* | 57% | Elizabeth Emken | 31% | Sep 06 | Sep 18 | Field Poll | ||
| California | Dianne Feinstein* | 52% | Elizabeth Emken | 30% | Sep 09 | Sep 12 | Pepperdine U. | ||
| California | Dianne Feinstein* | 55% | Elizabeth Emken | 37% | Sep 09 | Sep 11 | SurveyUSA | ||
| California | Dianne Feinstein* | 49% | Elizabeth Emken | 30% | Jul 16 | Jul 17 | Pepperdine University | ||
| California | Dianne Feinstein* | 51% | Elizabeth Emken | 32% | Jun 21 | Jul 02 | Field Poll | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Connecticut | Chris Murphy | 55% | Linda McMahon | 43% | Nov 06 | Nov 06 | Election 2012 | ||
| Connecticut | Chris Murphy | 52% | Linda McMahon | 43% | Nov 01 | Nov 02 | PPP | ||
| Connecticut | Chris Murphy | 51% | Linda McMahon | 45% | Oct 28 | Oct 28 | Rasmussen | ||
| Connecticut | Chris Murphy | 48% | Linda McMahon | 47% | Oct 21 | Oct 21 | Rasmussen | ||
| Connecticut | Chris Murphy | 47% | Linda McMahon | 43% | Oct 19 | Oct 21 | SurveyUSA | ||
| Connecticut | Chris Murphy | 49% | Linda McMahon | 43% | Oct 19 | Oct 22 | Quinnipiac U. | ||
| Connecticut | Chris Murphy | 44% | Linda McMahon | 44% | Oct 15 | Oct 17 | Mason Dixon | ||
| Connecticut | Chris Murphy | 48% | Linda McMahon | 44% | Oct 15 | Oct 16 | PPP | ||
| Connecticut | Chris Murphy | 44% | Linda McMahon | 38% | Oct 11 | Oct 16 | U. of Connecticut | ||
| Connecticut | Chris Murphy | 46% | Linda McMahon | 44% | Oct 04 | Oct 14 | Siena Coll. | ||
| Connecticut | Chris Murphy | 51% | Linda McMahon | 46% | Oct 07 | Oct 07 | Rasmussen | ||
| Connecticut | Chris Murphy | 47% | Linda McMahon | 48% | Sep 28 | Oct 02 | Quinnipiac U. | ||
| Connecticut | Chris Murphy | 48% | Linda McMahon | 42% | Sep 24 | Sep 26 | PPP | ||
| Connecticut | Chris Murphy | 37% | Linda McMahon | 33% | Sep 11 | Sep 16 | U. of Connecticut | ||
| Connecticut | Chris Murphy | 46% | Linda McMahon | 49% | Aug 22 | Aug 26 | Quinnipiac U. | ||
| Connecticut | Chris Murphy | 48% | Linda McMahon | 44% | Aug 22 | Aug 23 | PPP | ||
| Connecticut | Chris Murphy | 46% | Linda McMahon | 49% | Aug 21 | Aug 21 | Rasmussen | ||
| Connecticut | Chris Murphy | 50% | Linda McMahon | 42% | Jul 26 | Jul 29 | PPP | ||
| Connecticut | Chris Murphy | 46% | Linda McMahon | 43% | May 29 | Jun 03 | Quinnipiac U. | ||
| Connecticut | Chris Murphy | 52% | Linda McMahon | 37% | Mar 14 | Mar 19 | Quinnipiac U. | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Delaware | Tom Carper* | 66% | Kevin Wade | 29% | Nov 06 | Nov 06 | Election 2012 | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Florida | Bill Nelson* | 55% | Connie McGillicuddy | 42% | Nov 06 | Nov 06 | Election 2012 | ||
| Florida | Bill Nelson* | 51% | Connie McGillicuddy | 46% | Nov 03 | Nov 04 | PPP | ||
| Florida | Bill Nelson* | 54% | Connie McGillicuddy | 39% | Nov 02 | Nov 04 | IPSOS | ||
| Florida | Bill Nelson* | 52% | Connie McGillicuddy | 38% | Nov 01 | Nov 03 | Zogby | ||
| Florida | Bill Nelson* | 49% | Connie McGillicuddy | 43% | Oct 30 | Nov 01 | Mason Dixon | ||
| Florida | Bill Nelson* | 52% | Connie McGillicuddy | 41% | Oct 30 | Nov 01 | IPSOS | ||
| Florida | Bill Nelson* | 52% | Connie McGillicuddy | 43% | Oct 30 | Nov 01 | Marist Coll. | ||
| Florida | Bill Nelson* | 50% | Connie McGillicuddy | 46% | Oct 29 | Oct 29 | Pulse Opinion Research | ||
| Florida | Bill Nelson* | 52% | Connie McGillicuddy | 42% | Oct 27 | Oct 31 | IPSOS | ||
| Florida | Bill Nelson* | 50% | Connie McGillicuddy | 41% | Oct 27 | Oct 29 | Zogby | ||
| Florida | Bill Nelson* | 50% | Connie McGillicuddy | 42% | Oct 26 | Oct 28 | PPP | ||
| Florida | Bill Nelson* | 49% | Connie McGillicuddy | 41% | Oct 25 | Oct 27 | SurveyUSA | ||
| Florida | Bill Nelson* | 49% | Connie McGillicuddy | 46% | Oct 25 | Oct 25 | Rasmussen | ||
| Florida | Bill Nelson* | 52% | Connie McGillicuddy | 39% | Oct 23 | Oct 28 | Quinnipiac U. | ||
| Florida | Bill Nelson* | 47% | Connie McGillicuddy | 44% | Oct 22 | Oct 24 | Mason Dixon | ||
| Florida | Bill Nelson* | 52% | Connie McGillicuddy | 44% | Oct 19 | Oct 21 | Pharos Research Group | ||
| Florida | Bill Nelson* | 56% | Connie McGillicuddy | 39% | Oct 18 | Oct 20 | Angus-Reid | ||
| Florida | Bill Nelson* | 48% | Connie McGillicuddy | 43% | Oct 18 | Oct 18 | Rasmussen | ||
| Florida | Bill Nelson* | 45% | Connie McGillicuddy | 41% | Oct 17 | Oct 18 | PPP | ||
| Florida | Bill Nelson* | 48% | Connie McGillicuddy | 40% | Oct 17 | Oct 18 | SurveyUSA | ||
| Florida | Bill Nelson* | 45% | Connie McGillicuddy | 37% | Oct 12 | Oct 14 | PPP | ||
| Florida | Bill Nelson* | 46% | Connie McGillicuddy | 45% | Oct 11 | Oct 11 | Rasmussen | ||
| Florida | Bill Nelson* | 47% | Connie McGillicuddy | 42% | Oct 08 | Oct 10 | Mason Dixon | ||
| Florida | Bill Nelson* | 52% | Connie McGillicuddy | 39% | Oct 07 | Oct 09 | Marist Coll. | ||
| Florida | Bill Nelson* | 50% | Connie McGillicuddy | 40% | Oct 01 | Oct 09 | U. of North Florida | ||
| Florida | Bill Nelson* | 52% | Connie McGillicuddy | 41% | Oct 04 | Oct 04 | Rasmussen | ||
| Florida | Bill Nelson* | 52% | Connie McGillicuddy | 41% | Sep 30 | Oct 01 | Marist Coll. | ||
| Florida | Bill Nelson* | 40% | Connie McGillicuddy | 34% | Sep 27 | Sep 30 | Suffolk U. | ||
| Florida | Bill Nelson* | 46% | Connie McGillicuddy | 37% | Sep 20 | Sep 23 | PPP | ||
| Florida | Bill Nelson* | 53% | Connie McGillicuddy | 39% | Sep 18 | Sep 24 | Quinnipiac U. | ||
| Florida | Bill Nelson* | 54% | Connie McGillicuddy | 40% | Sep 19 | Sep 23 | Washington Post | ||
| Florida | Bill Nelson* | 48% | Connie McGillicuddy | 40% | Sep 17 | Sep 19 | Mason Dixon | ||
| Florida | Bill Nelson* | 49% | Connie McGillicuddy | 35% | Sep 16 | Sep 18 | Fox News | ||
| Florida | Bill Nelson* | 47% | Connie McGillicuddy | 40% | Sep 12 | Sep 12 | Rasmussen | ||
| Florida | Bill Nelson* | 51% | Connie McGillicuddy | 37% | Sep 09 | Sep 11 | Marist Coll. | ||
| Florida | Bill Nelson* | 47% | Connie McGillicuddy | 36% | Sep 07 | Sep 09 | SurveyUSA | ||
| Florida | Bill Nelson* | 45% | Connie McGillicuddy | 38% | Aug 31 | Sep 02 | PPP | ||
| Florida | Bill Nelson* | 50% | Connie McGillicuddy | 41% | Aug 15 | Aug 21 | Quinnipiac U. | ||
| Florida | Bill Nelson* | 47% | Connie McGillicuddy | 40% | Aug 15 | Aug 15 | Rasmussen | ||
| Florida | Bill Nelson* | 45% | Connie McGillicuddy | 43% | Jul 26 | Jul 29 | PPP | ||
| Florida | Bill Nelson* | 47% | Connie McGillicuddy | 40% | Jul 24 | Jul 30 | Quinnipiac U. | ||
| Florida | Bill Nelson* | 42% | Connie McGillicuddy | 48% | Jul 17 | Jul 19 | SurveyUSA | ||
| Florida | Bill Nelson* | 47% | Connie McGillicuddy | 42% | Jul 09 | Jul 11 | Mason Dixon | ||
| Florida | Bill Nelson* | 37% | Connie McGillicuddy | 46% | Jul 09 | Jul 09 | Rasmussen | ||
| Florida | Bill Nelson* | 41% | Connie McGillicuddy | 40% | Jun 19 | Jun 25 | Quinnipiac U. | ||
| Florida | Bill Nelson* | 43% | Connie McGillicuddy | 39% | Jun 12 | Jun 18 | Quinnipiac U. | ||
| Florida | Bill Nelson* | 49% | Connie McGillicuddy | 36% | May 31 | Jun 03 | PPP | ||
| Florida | Bill Nelson* | 41% | Connie McGillicuddy | 42% | May 15 | May 21 | Quinnipiac U. | ||
| Florida | Bill Nelson* | 46% | Connie McGillicuddy | 42% | May 17 | May 20 | Marist Coll. | ||
| Florida | Bill Nelson* | 47% | Connie McGillicuddy | 36% | Apr 25 | Apr 25 | Rasmussen | ||
| Florida | Bill Nelson* | 47% | Connie McGillicuddy | 37% | Apr 12 | Apr 15 | PPP | ||
| Florida | Bill Nelson* | 44% | Connie McGillicuddy | 36% | Mar 20 | Mar 26 | Quinnipiac U. | ||
| Florida | Bill Nelson* | 41% | Connie McGillicuddy | 41% | Feb 13 | Feb 13 | Rasmussen | ||
| Florida | Bill Nelson* | 45% | Connie McGillicuddy | 42% | Jan 24 | Jan 26 | Mason Dixon | ||
| Florida | Bill Nelson* | 42% | Connie McGillicuddy | 32% | Jan 22 | Jan 24 | Suffolk U. | ||
| Florida | Bill Nelson* | 41% | Connie McGillicuddy | 40% | Jan 04 | Jan 08 | Quinnipiac U. | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Hawaii | Maizie Hirono | 63% | Linda Lingle | 37% | Nov 06 | Nov 06 | Election 2012 | ||
| Hawaii | Maizie Hirono | 55% | Linda Lingle | 40% | Oct 24 | Oct 26 | Merriman River Group | ||
| Hawaii | Maizie Hirono | 57% | Linda Lingle | 35% | Oct 15 | Oct 22 | Ward Research | ||
| Hawaii | Maizie Hirono | 55% | Linda Lingle | 39% | Sep 26 | Sep 28 | Merriman River Group | ||
| Hawaii | Maizie Hirono | 58% | Linda Lingle | 39% | Jul 12 | Jul 21 | Ward Research | ||
| Hawaii | Maizie Hirono | 57% | Linda Lingle | 37% | Jan 26 | Feb 05 | Ward Research | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Indiana | Joe Donnelly | 50% | Richard Mourdock | 44% | Nov 06 | Nov 06 | Election 2012 | ||
| Indiana | Joe Donnelly | 45% | Richard Mourdock | 42% | Nov 01 | Nov 01 | Rasmussen | ||
| Indiana | Joe Donnelly | 47% | Richard Mourdock | 36% | Oct 28 | Oct 30 | Howey-DePauw | ||
| Indiana | Joe Donnelly | 47% | Richard Mourdock | 46% | Oct 26 | Oct 28 | Pharos Research Group | ||
| Indiana | Joe Donnelly | 46% | Richard Mourdock | 46% | Oct 19 | Oct 21 | Pharos Research Group | ||
| Indiana | Joe Donnelly | 43% | Richard Mourdock | 41% | Oct 17 | Oct 21 | Global Strategy | ||
| Indiana | Joe Donnelly | 42% | Richard Mourdock | 47% | Oct 10 | Oct 11 | Rasmussen | ||
| Indiana | Joe Donnelly | 40% | Richard Mourdock | 38% | Sep 19 | Sep 23 | Howey-DePauw | ||
| Indiana | Joe Donnelly | 45% | Richard Mourdock | 42% | Sep 10 | Sep 12 | Global Strategy | ||
| Indiana | Joe Donnelly | 39% | Richard Mourdock | 41% | Aug 06 | Aug 09 | Market Research | ||
| Indiana | Joe Donnelly | 40% | Richard Mourdock | 42% | Jul 31 | Aug 01 | Rasmussen | ||
| Indiana | Joe Donnelly | 42% | Richard Mourdock | 42% | May 23 | May 24 | Rasmussen | ||
| Indiana | Joe Donnelly | 35% | Richard Mourdock | 35% | Mar 26 | Mar 27 | Howey-DePauw | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Maine | Cynthia Dill | 13% | Charlie Summers | 31% | Angus King | 53% | Nov 06 | Nov 06 | Election 2012 |
| Maine | Cynthia Dill | 12% | Charlie Summers | 36% | Angus King | 50% | Nov 01 | Nov 02 | PPP |
| Maine | Cynthia Dill | 11% | Charlie Summers | 33% | Angus King | 49% | Oct 30 | Oct 31 | Critical Insights |
| Maine | Cynthia Dill | 12% | Charlie Summers | 24% | Angus King | 50% | Sep 24 | Sep 28 | Pan Atlantic SMS |
| Maine | Cynthia Dill | 14% | Charlie Summers | 33% | Angus King | 45% | Sep 25 | Sep 25 | Rasmussen |
| Maine | Cynthia Dill | 14% | Charlie Summers | 35% | Angus King | 43% | Sep 17 | Sep 18 | PPP |
| Maine | Cynthia Dill | 15% | Charlie Summers | 28% | Angus King | 44% | Sep 15 | Sep 17 | Maine Peoples Res. Ctr. |
| Maine | Cynthia Dill | 12% | Charlie Summers | 28% | Angus King | 50% | Sep 12 | Sep 16 | Critical Insights |
| Maine | Cynthia Dill | 08% | Charlie Summers | 28% | Angus King | 46% | Aug 05 | Aug 06 | Moore Consulting |
| Maine | Cynthia Dill | 07% | Charlie Summers | 27% | Angus King | 55% | Jun 20 | Jun 25 | Critical Insights |
| Maine | Cynthia Dill | 09% | Charlie Summers | 23% | Angus King | 50% | Jun 13 | Jun 14 | MassINC |
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Maryland | Ben Cardin* | 55% | Dan Bongino | 27% | Nov 06 | Nov 06 | Election 2012 | ||
| Maryland | Ben Cardin* | 50% | Dan Bongino | 24% | Oct 20 | Oct 23 | OpinionWorks | ||
| Maryland | Ben Cardin* | 53% | Dan Bongino | 22% | Oct 11 | Oct 15 | Washington Post | ||
| Maryland | Ben Cardin* | 50% | Dan Bongino | 22% | _MD!I | 21% | Sep 17 | Sep 23 | Gonzales Research |
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Massachusetts | Elizabeth Warren | 54% | Scott Brown* | 46% | Nov 06 | Nov 06 | Election 2012 | ||
| Massachusetts | Elizabeth Warren | 48% | Scott Brown* | 49% | Oct 31 | Nov 03 | U. of Mass. | ||
| Massachusetts | Elizabeth Warren | 52% | Scott Brown* | 46% | Nov 01 | Nov 02 | PPP | ||
| Massachusetts | Elizabeth Warren | 47% | Scott Brown* | 49% | Oct 31 | Nov 01 | Kimball Political Consulting | ||
| Massachusetts | Elizabeth Warren | 50% | Scott Brown* | 46% | Oct 26 | Nov 01 | Western New England U. | ||
| Massachusetts | Elizabeth Warren | 47% | Scott Brown* | 47% | Oct 24 | Oct 28 | U. of New Hampshire | ||
| Massachusetts | Elizabeth Warren | 53% | Scott Brown* | 46% | Oct 25 | Oct 28 | Suffolk U. | ||
| Massachusetts | Elizabeth Warren | 52% | Scott Brown* | 47% | Oct 25 | Oct 25 | Rasmussen | ||
| Massachusetts | Elizabeth Warren | 50% | Scott Brown* | 44% | Oct 21 | Oct 22 | MassINC | ||
| Massachusetts | Elizabeth Warren | 53% | Scott Brown* | 44% | Oct 15 | Oct 16 | PPP | ||
| Massachusetts | Elizabeth Warren | 49% | Scott Brown* | 47% | Oct 10 | Oct 10 | Rasmussen | ||
| Massachusetts | Elizabeth Warren | 50% | Scott Brown* | 44% | Oct 09 | Oct 11 | PPP | ||
| Massachusetts | Elizabeth Warren | 45% | Scott Brown* | 48% | Oct 05 | Oct 07 | MassINC | ||
| Massachusetts | Elizabeth Warren | 48% | Scott Brown* | 45% | Oct 02 | Oct 08 | U. of Mass. | ||
| Massachusetts | Elizabeth Warren | 50% | Scott Brown* | 45% | Sep 28 | Oct 04 | Western New England U. | ||
| Massachusetts | Elizabeth Warren | 48% | Scott Brown* | 44% | Sep 25 | Sep 30 | Opinion Dynamics | ||
| Massachusetts | Elizabeth Warren | 49% | Scott Brown* | 45% | Sep 26 | Sep 28 | MassINC | ||
| Massachusetts | Elizabeth Warren | 43% | Scott Brown* | 38% | Sep 21 | Sep 27 | U. of New Hampshire | ||
| Massachusetts | Elizabeth Warren | 48% | Scott Brown* | 48% | Sep 24 | Sep 24 | Rasmussen | ||
| Massachusetts | Elizabeth Warren | 47% | Scott Brown* | 42% | Sep 15 | Sep 17 | MassINC | ||
| Massachusetts | Elizabeth Warren | 45% | Scott Brown* | 49% | Sep 13 | Sep 17 | U. of Mass. | ||
| Massachusetts | Elizabeth Warren | 48% | Scott Brown* | 44% | Sep 13 | Sep 16 | Suffolk U. | ||
| Massachusetts | Elizabeth Warren | 48% | Scott Brown* | 46% | Sep 13 | Sep 16 | PPP | ||
| Massachusetts | Elizabeth Warren | 50% | Scott Brown* | 44% | Sep 06 | Sep 13 | Western New England U. | ||
| Massachusetts | Elizabeth Warren | 44% | Scott Brown* | 49% | Aug 16 | Aug 19 | PPP | ||
| Massachusetts | Elizabeth Warren | 40% | Scott Brown* | 38% | Jul 19 | Jul 22 | MassINC | ||
| Massachusetts | Elizabeth Warren | 46% | Scott Brown* | 46% | Jun 22 | Jun 24 | PPP | ||
| Massachusetts | Elizabeth Warren | 45% | Scott Brown* | 43% | May 29 | May 31 | Western New England U. | ||
| Massachusetts | Elizabeth Warren | 37% | Scott Brown* | 39% | May 25 | May 31 | U. of New Hampshire | ||
| Massachusetts | Elizabeth Warren | 47% | Scott Brown* | 48% | May 20 | May 22 | Suffolk U. | ||
| Massachusetts | Elizabeth Warren | 45% | Scott Brown* | 45% | May 07 | May 07 | Rasmussen | ||
| Massachusetts | Elizabeth Warren | 43% | Scott Brown* | 41% | Apr 25 | Apr 28 | MassINC | ||
| Massachusetts | Elizabeth Warren | 46% | Scott Brown* | 45% | Apr 09 | Apr 09 | Rasmussen | ||
| Massachusetts | Elizabeth Warren | 35% | Scott Brown* | 37% | Mar 21 | Mar 27 | U. of New Hampshire | ||
| Massachusetts | Elizabeth Warren | 46% | Scott Brown* | 41% | Mar 16 | Mar 18 | PPP | ||
| Massachusetts | Elizabeth Warren | 44% | Scott Brown* | 49% | Feb 29 | Feb 29 | Rasmussen | ||
| Massachusetts | Elizabeth Warren | 41% | Scott Brown* | 49% | Feb 23 | Mar 01 | Western New England U. | ||
| Massachusetts | Elizabeth Warren | 40% | Scott Brown* | 49% | Feb 11 | Feb 15 | Suffolk U. | ||
| Massachusetts | Elizabeth Warren | 46% | Scott Brown* | 43% | Feb 06 | Feb 09 | MassINC | ||
| Massachusetts | Elizabeth Warren | 43% | Scott Brown* | 52% | Jan 31 | Feb 04 | Opinion Dynamics | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Michigan | Debbie Stabenow* | 59% | Pete Hoekstra | 38% | Nov 06 | Nov 06 | Election 2012 | ||
| Michigan | Debbie Stabenow* | 55% | Pete Hoekstra | 42% | Nov 01 | Nov 03 | PPP | ||
| Michigan | Debbie Stabenow* | 52% | Pete Hoekstra | 38% | Oct 26 | Oct 29 | EPIC MRA | ||
| Michigan | Debbie Stabenow* | 59% | Pete Hoekstra | 39% | Oct 18 | Oct 20 | Angus-Reid | ||
| Michigan | Debbie Stabenow* | 51% | Pete Hoekstra | 39% | Oct 11 | Oct 11 | Rasmussen | ||
| Michigan | Debbie Stabenow* | 55% | Pete Hoekstra | 35% | Oct 04 | Oct 06 | EPIC MRA | ||
| Michigan | Debbie Stabenow* | 53% | Pete Hoekstra | 37% | Sep 20 | Sep 20 | Rasmussen | ||
| Michigan | Debbie Stabenow* | 46% | Pete Hoekstra | 40% | Sep 10 | Sep 15 | Marketing Resource Grp. | ||
| Michigan | Debbie Stabenow* | 49% | Pete Hoekstra | 38% | Sep 08 | Sep 11 | EPIC MRA | ||
| Michigan | Debbie Stabenow* | 50% | Pete Hoekstra | 41% | Aug 31 | Sep 02 | PPP | ||
| Michigan | Debbie Stabenow* | 51% | Pete Hoekstra | 44% | Aug 28 | Aug 28 | EPIC MRA | ||
| Michigan | Debbie Stabenow* | 44% | Pete Hoekstra | 45% | Aug 23 | Aug 23 | Mitchell Research | ||
| Michigan | Debbie Stabenow* | 48% | Pete Hoekstra | 40% | Aug 18 | Aug 20 | Glengariff Group | ||
| Michigan | Debbie Stabenow* | 49% | Pete Hoekstra | 35% | Jul 24 | Jul 31 | EPIC MRA | ||
| Michigan | Debbie Stabenow* | 46% | Pete Hoekstra | 40% | Jul 23 | Jul 23 | Rasmussen | ||
| Michigan | Debbie Stabenow* | 52% | Pete Hoekstra | 38% | Jul 21 | Jul 23 | PPP | ||
| Michigan | Debbie Stabenow* | 49% | Pete Hoekstra | 37% | Jun 24 | Jun 25 | Marist Coll. | ||
| Michigan | Debbie Stabenow* | 48% | Pete Hoekstra | 39% | Jun 14 | Jun 14 | Rasmussen | ||
| Michigan | Debbie Stabenow* | 49% | Pete Hoekstra | 38% | Jun 02 | Jun 05 | EPIC MRA | ||
| Michigan | Debbie Stabenow* | 53% | Pete Hoekstra | 37% | May 24 | May 27 | PPP | ||
| Michigan | Debbie Stabenow* | 53% | Pete Hoekstra | 32% | Feb 19 | Feb 20 | Marist Coll. | ||
| Michigan | Debbie Stabenow* | 51% | Pete Hoekstra | 37% | Feb 10 | Feb 12 | PPP | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Minnesota | Amy Klobuchar* | 65% | Kurt Bills | 31% | Nov 06 | Nov 06 | Election 2012 | ||
| Minnesota | Amy Klobuchar* | 60% | Kurt Bills | 30% | Nov 01 | Nov 03 | SurveyUSA | ||
| Minnesota | Amy Klobuchar* | 62% | Kurt Bills | 32% | Nov 02 | Nov 03 | PPP | ||
| Minnesota | Amy Klobuchar* | 60% | Kurt Bills | 29% | Oct 26 | Oct 28 | SurveyUSA | ||
| Minnesota | Amy Klobuchar* | 65% | Kurt Bills | 22% | Oct 23 | Oct 25 | Mason Dixon | ||
| Minnesota | Amy Klobuchar* | 56% | Kurt Bills | 33% | Oct 21 | Oct 21 | Rasmussen | ||
| Minnesota | Amy Klobuchar* | 58% | Kurt Bills | 30% | Oct 12 | Oct 14 | SurveyUSA | ||
| Minnesota | Amy Klobuchar* | 57% | Kurt Bills | 31% | Oct 05 | Oct 08 | PPP | ||
| Minnesota | Amy Klobuchar* | 57% | Kurt Bills | 28% | Sep 17 | Sep 19 | Mason Dixon | ||
| Minnesota | Amy Klobuchar* | 55% | Kurt Bills | 36% | Sep 10 | Sep 11 | PPP | ||
| Minnesota | Amy Klobuchar* | 55% | Kurt Bills | 34% | Sep 06 | Sep 09 | SurveyUSA | ||
| Minnesota | Amy Klobuchar* | 55% | Kurt Bills | 31% | Jul 17 | Jul 19 | SurveyUSA | ||
| Minnesota | Amy Klobuchar* | 55% | Kurt Bills | 29% | May 31 | Jun 30 | PPP | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Mississippi | Albert Gore | 40% | Roger Wicker* | 57% | Nov 06 | Nov 06 | Election 2012 | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Missouri | Claire McCaskill* | 55% | Todd Akin | 39% | Nov 06 | Nov 06 | Election 2012 | ||
| Missouri | Claire McCaskill* | 48% | Todd Akin | 44% | Nov 02 | Nov 03 | PPP | ||
| Missouri | Claire McCaskill* | 51% | Todd Akin | 36% | Oct 28 | Nov 03 | SurveyUSA | ||
| Missouri | Claire McCaskill* | 45% | Todd Akin | 43% | Oct 23 | Oct 25 | Mason Dixon | ||
| Missouri | Claire McCaskill* | 46% | Todd Akin | 40% | Oct 19 | Oct 21 | PPP | ||
| Missouri | Claire McCaskill* | 51% | Todd Akin | 43% | Oct 17 | Oct 17 | Rasmussen | ||
| Missouri | Claire McCaskill* | 46% | Todd Akin | 40% | Oct 01 | Oct 03 | PPP | ||
| Missouri | Claire McCaskill* | 51% | Todd Akin | 45% | Oct 02 | Oct 02 | Rasmussen | ||
| Missouri | Claire McCaskill* | 47% | Todd Akin | 48% | Sep 20 | Sep 20 | Chilenski Strategies | ||
| Missouri | Claire McCaskill* | 49% | Todd Akin | 43% | Sep 11 | Sep 11 | Rasmussen | ||
| Missouri | Claire McCaskill* | 45% | Todd Akin | 44% | Aug 28 | Aug 29 | PPP | ||
| Missouri | Claire McCaskill* | 48% | Todd Akin | 38% | Aug 22 | Aug 22 | Rasmussen | ||
| Missouri | Claire McCaskill* | 50% | Todd Akin | 41% | Aug 22 | Aug 23 | Mason Dixon | ||
| Missouri | Claire McCaskill* | 43% | Todd Akin | 44% | Aug 20 | Aug 20 | PPP | ||
| Missouri | Claire McCaskill* | 40% | Todd Akin | 51% | Aug 09 | Aug 12 | SurveyUSA | ||
| Missouri | Claire McCaskill* | 47% | Todd Akin | 48% | Aug 08 | Aug 08 | Chilenski Strategies | ||
| Missouri | Claire McCaskill* | 44% | Todd Akin | 47% | Jul 30 | Jul 30 | Rasmussen | ||
| Missouri | Claire McCaskill* | 44% | Todd Akin | 45% | Jul 24 | Jul 27 | PPP | ||
| Missouri | Claire McCaskill* | 44% | Todd Akin | 49% | Jul 23 | Jul 25 | Mason Dixon | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Montana | Jon Tester* | 49% | Denny Rehberg | 45% | Nov 06 | Nov 06 | Election 2012 | ||
| Montana | Jon Tester* | 48% | Denny Rehberg | 46% | Nov 02 | Nov 03 | PPP | ||
| Montana | Jon Tester* | 45% | Denny Rehberg | 49% | Oct 29 | Oct 31 | Mason Dixon | ||
| Montana | Jon Tester* | 49% | Denny Rehberg | 48% | Oct 29 | Oct 29 | Rasmussen | ||
| Montana | Jon Tester* | 48% | Denny Rehberg | 47% | Oct 26 | Oct 28 | Pharos Research Group | ||
| Montana | Jon Tester* | 48% | Denny Rehberg | 46% | Oct 19 | Oct 21 | Pharos Research Group | ||
| Montana | Jon Tester* | 46% | Denny Rehberg | 44% | Oct 15 | Oct 16 | PPP | ||
| Montana | Jon Tester* | 48% | Denny Rehberg | 48% | Oct 14 | Oct 14 | Rasmussen | ||
| Montana | Jon Tester* | 45% | Denny Rehberg | 43% | Oct 08 | Oct 10 | PPP | ||
| Montana | Jon Tester* | 44% | Denny Rehberg | 42% | Sep 23 | Sep 25 | Global Strategy | ||
| Montana | Jon Tester* | 45% | Denny Rehberg | 48% | Sep 17 | Sep 19 | Mason Dixon | ||
| Montana | Jon Tester* | 45% | Denny Rehberg | 43% | Sep 10 | Sep 11 | PPP | ||
| Montana | Jon Tester* | 43% | Denny Rehberg | 47% | Aug 20 | Aug 20 | Rasmussen | ||
| Montana | Jon Tester* | 47% | Denny Rehberg | 49% | Jun 18 | Jun 18 | Rasmussen | ||
| Montana | Jon Tester* | 43% | Denny Rehberg | 53% | May 02 | May 02 | Rasmussen | ||
| Montana | Jon Tester* | 48% | Denny Rehberg | 43% | Apr 26 | Apr 29 | PPP | ||
| Montana | Jon Tester* | 44% | Denny Rehberg | 47% | Apr 02 | Apr 02 | Rasmussen | ||
| Montana | Jon Tester* | 44% | Denny Rehberg | 47% | Feb 22 | Feb 22 | Rasmussen | ||
| Montana | Jon Tester* | 44% | Denny Rehberg | 47% | Feb 16 | Feb 17 | Pub. Opin. Strat. + | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Nebraska | Bob Kerrey | 42% | Deb Fischer | 58% | Nov 06 | Nov 06 | Election 2012 | ||
| Nebraska | Bob Kerrey | 47% | Deb Fischer | 50% | Oct 26 | Oct 28 | Pharos Research Group | ||
| Nebraska | Bob Kerrey | 46% | Deb Fischer | 49% | Oct 23 | Oct 25 | Wiese Research Assoc. | ||
| Nebraska | Bob Kerrey | 46% | Deb Fischer | 48% | Oct 19 | Oct 21 | Pharos Research Group | ||
| Nebraska | Bob Kerrey | 42% | Deb Fischer | 52% | Sep 17 | Sep 20 | Wiese Research Assoc. | ||
| Nebraska | Bob Kerrey | 38% | Deb Fischer | 56% | May 16 | May 16 | Rasmussen | ||
| Nebraska | Bob Kerrey | 38% | Deb Fischer | 48% | Mar 22 | Mar 25 | PPP | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Nevada | Shelley Berkley | 45% | Dean Heller* | 46% | Nov 06 | Nov 06 | Election 2012 | ||
| Nevada | Shelley Berkley | 46% | Dean Heller* | 48% | Nov 03 | Nov 04 | PPP | ||
| Nevada | Shelley Berkley | 40% | Dean Heller* | 46% | Oct 23 | Oct 29 | SurveyUSA | ||
| Nevada | Shelley Berkley | 44% | Dean Heller* | 44% | Oct 22 | Oct 24 | PPP | ||
| Nevada | Shelley Berkley | 45% | Dean Heller* | 48% | Oct 23 | Oct 24 | Marist Coll. | ||
| Nevada | Shelley Berkley | 45% | Dean Heller* | 50% | Oct 23 | Oct 23 | Rasmussen | ||
| Nevada | Shelley Berkley | 43% | Dean Heller* | 50% | Oct 15 | Oct 15 | Rasmussen | ||
| Nevada | Shelley Berkley | 40% | Dean Heller* | 46% | Oct 11 | Oct 15 | SurveyUSA | ||
| Nevada | Shelley Berkley | 44% | Dean Heller* | 47% | Oct 08 | Oct 10 | PPP | ||
| Nevada | Shelley Berkley | 45% | Dean Heller* | 48% | Oct 08 | Oct 08 | Rasmussen | ||
| Nevada | Shelley Berkley | 37% | Dean Heller* | 40% | Oct 06 | Oct 09 | Suffolk U. | ||
| Nevada | Shelley Berkley | 43% | Dean Heller* | 49% | Sep 23 | Sep 25 | Marist Coll. | ||
| Nevada | Shelley Berkley | 48% | Dean Heller* | 44% | Sep 18 | Sep 20 | PPP | ||
| Nevada | Shelley Berkley | 41% | Dean Heller* | 42% | Sep 18 | Sep 18 | Rasmussen | ||
| Nevada | Shelley Berkley | 45% | Dean Heller* | 47% | Aug 23 | Aug 26 | PPP | ||
| Nevada | Shelley Berkley | 39% | Dean Heller* | 44% | Aug 16 | Aug 21 | SurveyUSA | ||
| Nevada | Shelley Berkley | 42% | Dean Heller* | 51% | Jul 24 | Jul 24 | Rasmussen | ||
| Nevada | Shelley Berkley | 43% | Dean Heller* | 44% | Jun 07 | Jun 10 | PPP | ||
| Nevada | Shelley Berkley | 44% | Dean Heller* | 46% | May 22 | May 24 | Marist Coll. | ||
| Nevada | Shelley Berkley | 40% | Dean Heller* | 51% | Apr 30 | Apr 30 | Rasmussen | ||
| Nevada | Shelley Berkley | 43% | Dean Heller* | 46% | Mar 29 | Apr 01 | PPP | ||
| Nevada | Shelley Berkley | 40% | Dean Heller* | 47% | Mar 19 | Mar 19 | Rasmussen | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| New Jersey | Bob Menendez* | 59% | Joseph Kyrillos | 40% | Nov 06 | Nov 06 | Election 2012 | ||
| New Jersey | Bob Menendez* | 50% | Joseph Kyrillos | 32% | Oct 23 | Oct 25 | Global Strategy | ||
| New Jersey | Bob Menendez* | 53% | Joseph Kyrillos | 33% | Oct 17 | Oct 18 | SurveyUSA | ||
| New Jersey | Bob Menendez* | 52% | Joseph Kyrillos | 30% | Oct 12 | Oct 18 | Richard Stockton College | ||
| New Jersey | Bob Menendez* | 55% | Joseph Kyrillos | 37% | Oct 10 | Oct 14 | Quinnipiac U. | ||
| New Jersey | Bob Menendez* | 49% | Joseph Kyrillos | 35% | Oct 04 | Oct 08 | Global Strategy | ||
| New Jersey | Bob Menendez* | 49% | Joseph Kyrillos | 34% | Sep 19 | Sep 23 | Monmouth U. | ||
| New Jersey | Bob Menendez* | 43% | Joseph Kyrillos | 32% | Sep 09 | Sep 12 | Global Strategy | ||
| New Jersey | Bob Menendez* | 50% | Joseph Kyrillos | 36% | Sep 06 | Sep 12 | Fairleigh Dickinson U. | ||
| New Jersey | Bob Menendez* | 50% | Joseph Kyrillos | 40% | Aug 27 | Sep 02 | Quinnipiac U. | ||
| New Jersey | Bob Menendez* | 47% | Joseph Kyrillos | 35% | Aug 23 | Aug 25 | Rutgers-Eagleton | ||
| New Jersey | Bob Menendez* | 45% | Joseph Kyrillos | 33% | Jul 23 | Jul 29 | Fairleigh Dickinson U. | ||
| New Jersey | Bob Menendez* | 44% | Joseph Kyrillos | 35% | Jul 18 | Jul 22 | Monmouth U. | ||
| New Jersey | Bob Menendez* | 47% | Joseph Kyrillos | 34% | Jul 09 | Jul 15 | Quinnipiac U. | ||
| New Jersey | Bob Menendez* | 45% | Joseph Kyrillos | 35% | May 09 | May 14 | Quinnipiac U. | ||
| New Jersey | Bob Menendez* | 42% | Joseph Kyrillos | 33% | Apr 30 | May 06 | Fairleigh Dickinson U. | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| New Mexico | Martin Heinrich | 51% | Heather Wilson | 45% | Nov 06 | Nov 06 | Election 2012 | ||
| New Mexico | Martin Heinrich | 50% | Heather Wilson | 42% | Oct 23 | Oct 25 | Research and Polling | ||
| New Mexico | Martin Heinrich | 52% | Heather Wilson | 44% | Oct 23 | Oct 24 | PPP | ||
| New Mexico | Martin Heinrich | 48% | Heather Wilson | 39% | Oct 09 | Oct 11 | Research and Polling | ||
| New Mexico | Martin Heinrich | 52% | Heather Wilson | 39% | Oct 08 | Oct 08 | Rasmussen | ||
| New Mexico | Martin Heinrich | 51% | Heather Wilson | 41% | Oct 02 | Oct 03 | PPP | ||
| New Mexico | Martin Heinrich | 52% | Heather Wilson | 39% | Sep 27 | Sep 27 | Rasmussen | ||
| New Mexico | Martin Heinrich | 50% | Heather Wilson | 41% | Sep 07 | Sep 09 | PPP | ||
| New Mexico | Martin Heinrich | 49% | Heather Wilson | 42% | Sep 03 | Sep 06 | Research and Polling | ||
| New Mexico | Martin Heinrich | 48% | Heather Wilson | 41% | Aug 21 | Aug 21 | Rasmussen | ||
| New Mexico | Martin Heinrich | 48% | Heather Wilson | 43% | Jul 13 | Jul 16 | PPP | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| New York | Kirsten Gillibrand* | 72% | Wendy Long | 27% | Nov 06 | Nov 06 | Election 2012 | ||
| New York | Kirsten Gillibrand* | 64% | Wendy Long | 22% | Oct 23 | Oct 25 | SurveyUSA | ||
| New York | Kirsten Gillibrand* | 67% | Wendy Long | 24% | Oct 22 | Oct 24 | Siena Coll. | ||
| New York | Kirsten Gillibrand* | 68% | Wendy Long | 24% | Oct 18 | Oct 21 | Marist Coll. | ||
| New York | Kirsten Gillibrand* | 64% | Wendy Long | 27% | Sep 04 | Sep 09 | Quinnipiac U. | ||
| New York | Kirsten Gillibrand* | 65% | Wendy Long | 22% | Aug 14 | Aug 19 | Siena Coll. | ||
| New York | Kirsten Gillibrand* | 57% | Wendy Long | 24% | Jul 17 | Jul 23 | Quinnipiac U. | ||
| New York | Kirsten Gillibrand* | 62% | Wendy Long | 25% | Jul 10 | Jul 15 | Siena Coll. | ||
| New York | Kirsten Gillibrand* | 65% | Wendy Long | 22% | Jun 03 | Jun 06 | Siena Coll. | ||
| New York | Kirsten Gillibrand* | 58% | Wendy Long | 24% | May 22 | May 28 | Quinnipiac U. | ||
| New York | Kirsten Gillibrand* | 60% | Wendy Long | 26% | May 06 | May 10 | Siena Coll. | ||
| New York | Kirsten Gillibrand* | 65% | Wendy Long | 24% | Apr 01 | Apr 04 | Siena Coll. | ||
| New York | Kirsten Gillibrand* | 58% | Wendy Long | 25% | Mar 28 | Apr 02 | Quinnipiac U. | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| North Dakota | Heidi Heitkamp | 50% | Rick Berg | 49% | Nov 06 | Nov 06 | Election 2012 | ||
| North Dakota | Heidi Heitkamp | 45% | Rick Berg | 47% | Oct 26 | Oct 28 | Mason Dixon | ||
| North Dakota | Heidi Heitkamp | 50% | Rick Berg | 48% | Oct 26 | Oct 28 | Pharos Research Group | ||
| North Dakota | Heidi Heitkamp | 49% | Rick Berg | 48% | Oct 19 | Oct 21 | Pharos Research Group | ||
| North Dakota | Heidi Heitkamp | 45% | Rick Berg | 50% | Oct 17 | Oct 18 | Rasmussen | ||
| North Dakota | Heidi Heitkamp | 40% | Rick Berg | 50% | Oct 12 | Oct 15 | Essman Research | ||
| North Dakota | Heidi Heitkamp | 47% | Rick Berg | 47% | Oct 03 | Oct 05 | Mason Dixon | ||
| North Dakota | Heidi Heitkamp | 40% | Rick Berg | 49% | Jul 10 | Jul 11 | Rasmussen | ||
| North Dakota | Heidi Heitkamp | 47% | Rick Berg | 46% | Jun 04 | Jun 06 | Mason Dixon | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 45% | Nov 06 | Nov 06 | Election 2012 | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 48% | Nov 04 | Nov 04 | Rasmussen | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 42% | Nov 02 | Nov 04 | IPSOS | ||
| Ohio | Sherrod Brown* | 54% | Josh Mandel | 44% | Nov 03 | Nov 04 | PPP | ||
| Ohio | Sherrod Brown* | 43% | Josh Mandel | 36% | Nov 01 | Nov 03 | Zogby | ||
| Ohio | Sherrod Brown* | 44% | Josh Mandel | 41% | Nov 01 | Nov 04 | SurveyUSA | ||
| Ohio | Sherrod Brown* | 51% | Josh Mandel | 47% | Oct 31 | Nov 04 | U. of Cincinnati | ||
| Ohio | Sherrod Brown* | 48% | Josh Mandel | 48% | Nov 01 | Nov 01 | Rasmussen | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 42% | Oct 30 | Nov 01 | IPSOS | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 45% | Oct 30 | Nov 01 | Mason Dixon | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 45% | Oct 31 | Nov 01 | Marist Coll. | ||
| Ohio | Sherrod Brown* | 49% | Josh Mandel | 41% | Oct 27 | Oct 31 | IPSOS | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 43% | Oct 29 | Oct 29 | Pulse Opinion Research | ||
| Ohio | Sherrod Brown* | 51% | Josh Mandel | 45% | Oct 24 | Nov 03 | Columbus Dispatch | ||
| Ohio | Sherrod Brown* | 46% | Josh Mandel | 38% | Oct 27 | Oct 29 | Zogby | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 48% | Oct 28 | Oct 28 | Rasmussen | ||
| Ohio | Sherrod Brown* | 46% | Josh Mandel | 41% | Oct 26 | Oct 29 | SurveyUSA | ||
| Ohio | Sherrod Brown* | 49% | Josh Mandel | 44% | Oct 25 | Oct 30 | U. of Cincinnati | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 43% | Oct 26 | Oct 28 | Pharos Research Group | ||
| Ohio | Sherrod Brown* | 53% | Josh Mandel | 42% | Oct 26 | Oct 28 | PPP | ||
| Ohio | Sherrod Brown* | 51% | Josh Mandel | 42% | Oct 23 | Oct 28 | Quinnipiac U. | ||
| Ohio | Sherrod Brown* | 48% | Josh Mandel | 44% | Oct 23 | Oct 23 | Rasmussen | ||
| Ohio | Sherrod Brown* | 43% | Josh Mandel | 42% | Oct 20 | Oct 22 | SurveyUSA | ||
| Ohio | Sherrod Brown* | 51% | Josh Mandel | 47% | Oct 18 | Oct 23 | U. of Cincinnati | ||
| Ohio | Sherrod Brown* | 52% | Josh Mandel | 41% | Oct 19 | Oct 21 | Pharos Research Group | ||
| Ohio | Sherrod Brown* | 46% | Josh Mandel | 39% | Oct 18 | Oct 21 | Suffolk U. | ||
| Ohio | Sherrod Brown* | 49% | Josh Mandel | 44% | Oct 18 | Oct 20 | PPP | ||
| Ohio | Sherrod Brown* | 52% | Josh Mandel | 45% | Oct 18 | Oct 20 | Angus-Reid | ||
| Ohio | Sherrod Brown* | 51% | Josh Mandel | 42% | Oct 17 | Oct 20 | Quinnipiac U. | ||
| Ohio | Sherrod Brown* | 49% | Josh Mandel | 44% | Oct 17 | Oct 17 | Rasmussen | ||
| Ohio | Sherrod Brown* | 47% | Josh Mandel | 41% | Oct 15 | Oct 15 | Pulse Opinion Research | ||
| Ohio | Sherrod Brown* | 43% | Josh Mandel | 38% | Oct 12 | Oct 15 | SurveyUSA | ||
| Ohio | Sherrod Brown* | 49% | Josh Mandel | 42% | Oct 12 | Oct 13 | PPP | ||
| Ohio | Sherrod Brown* | 47% | Josh Mandel | 46% | Oct 10 | Oct 10 | Rasmussen | ||
| Ohio | Sherrod Brown* | 38% | Josh Mandel | 37% | Oct 07 | Oct 09 | Zogby | ||
| Ohio | Sherrod Brown* | 48% | Josh Mandel | 43% | Oct 08 | Oct 08 | Pulse Opinion Research | ||
| Ohio | Sherrod Brown* | 52% | Josh Mandel | 41% | Oct 07 | Oct 09 | Marist Coll. | ||
| Ohio | Sherrod Brown* | 42% | Josh Mandel | 38% | Oct 05 | Oct 08 | SurveyUSA | ||
| Ohio | Sherrod Brown* | 46% | Josh Mandel | 46% | Oct 04 | Oct 04 | Rasmussen | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 41% | Sep 30 | Oct 01 | Marist Coll. | ||
| Ohio | Sherrod Brown* | 49% | Josh Mandel | 41% | Sep 27 | Sep 30 | PPP | ||
| Ohio | Sherrod Brown* | 49% | Josh Mandel | 39% | Sep 19 | Sep 29 | Columbus Dispatch | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 40% | Sep 18 | Sep 24 | Quinnipiac U. | ||
| Ohio | Sherrod Brown* | 53% | Josh Mandel | 41% | Sep 19 | Sep 23 | Washington Post | ||
| Ohio | Sherrod Brown* | 47% | Josh Mandel | 40% | Sep 16 | Sep 18 | Fox News | ||
| Ohio | Sherrod Brown* | 52% | Josh Mandel | 45% | Sep 13 | Sep 18 | U. of Cincinnati | ||
| Ohio | Sherrod Brown* | 49% | Josh Mandel | 41% | Sep 12 | Sep 12 | Rasmussen | ||
| Ohio | Sherrod Brown* | 49% | Josh Mandel | 42% | Sep 09 | Sep 11 | Marist Coll. | ||
| Ohio | Sherrod Brown* | 48% | Josh Mandel | 40% | Sep 07 | Sep 09 | PPP | ||
| Ohio | Sherrod Brown* | 44% | Josh Mandel | 44% | Aug 15 | Aug 25 | Columbus Dispatch | ||
| Ohio | Sherrod Brown* | 48% | Josh Mandel | 41% | Aug 15 | Aug 21 | Quinnipiac U. | ||
| Ohio | Sherrod Brown* | 48% | Josh Mandel | 47% | Aug 16 | Aug 21 | U. of Cincinnati | ||
| Ohio | Sherrod Brown* | 44% | Josh Mandel | 44% | Aug 13 | Aug 13 | Rasmussen | ||
| Ohio | Sherrod Brown* | 47% | Josh Mandel | 37% | Aug 09 | Aug 12 | PPP | ||
| Ohio | Sherrod Brown* | 51% | Josh Mandel | 39% | Jul 24 | Jul 30 | Quinnipiac U. | ||
| Ohio | Sherrod Brown* | 46% | Josh Mandel | 42% | Jul 18 | Jul 18 | Rasmussen | ||
| Ohio | Sherrod Brown* | 46% | Josh Mandel | 39% | Jun 21 | Jun 24 | PPP | ||
| Ohio | Sherrod Brown* | 50% | Josh Mandel | 34% | Jun 19 | Jun 25 | Quinnipiac U. | ||
| Ohio | Sherrod Brown* | 47% | Josh Mandel | 42% | May 29 | May 29 | Rasmussen | ||
| Ohio | Sherrod Brown* | 45% | Josh Mandel | 37% | May 03 | May 06 | PPP | ||
| Ohio | Sherrod Brown* | 46% | Josh Mandel | 40% | May 02 | May 07 | Quinnipiac U. | ||
| Ohio | Sherrod Brown* | 44% | Josh Mandel | 41% | Apr 18 | Apr 18 | Rasmussen | ||
| Ohio | Sherrod Brown* | 43% | Josh Mandel | 43% | Mar 26 | Mar 26 | Rasmussen | ||
| Ohio | Sherrod Brown* | 46% | Josh Mandel | 36% | Mar 20 | Mar 26 | Quinnipiac U. | ||
| Ohio | Sherrod Brown* | 47% | Josh Mandel | 37% | Mar 01 | Mar 02 | Marist Coll. | ||
| Ohio | Sherrod Brown* | 44% | Josh Mandel | 40% | Feb 08 | Feb 08 | Rasmussen | ||
| Ohio | Sherrod Brown* | 47% | Josh Mandel | 36% | Jan 28 | Jan 29 | PPP | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Pennsylvania | Bob Casey* | 54% | Tom Smith | 45% | Nov 06 | Nov 06 | Election 2012 | ||
| Pennsylvania | Bob Casey* | 48% | Tom Smith | 42% | Nov 01 | Nov 03 | Muhlenberg Coll. | ||
| Pennsylvania | Bob Casey* | 52% | Tom Smith | 44% | Nov 02 | Nov 03 | PPP | ||
| Pennsylvania | Bob Casey* | 46% | Tom Smith | 45% | Oct 30 | Oct 30 | Pulse Opinion Research | ||
| Pennsylvania | Bob Casey* | 48% | Tom Smith | 39% | Oct 23 | Oct 28 | Franklin+Marshall Coll. | ||
| Pennsylvania | Bob Casey* | 46% | Tom Smith | 45% | Oct 24 | Oct 24 | Rasmussen | ||
| Pennsylvania | Bob Casey* | 49% | Tom Smith | 42% | Oct 23 | Oct 25 | Global Strategy | ||
| Pennsylvania | Bob Casey* | 52% | Tom Smith | 42% | Oct 19 | Oct 21 | Pharos Research Group | ||
| Pennsylvania | Bob Casey* | 45% | Tom Smith | 37% | Oct 17 | Oct 21 | Muhlenberg Coll. | ||
| Pennsylvania | Bob Casey* | 51% | Tom Smith | 45% | Oct 18 | Oct 20 | Angus-Reid | ||
| Pennsylvania | Bob Casey* | 47% | Tom Smith | 46% | Oct 15 | Oct 15 | Pulse Opinion Research | ||
| Pennsylvania | Bob Casey* | 48% | Tom Smith | 45% | Oct 12 | Oct 14 | Quinnipiac U. | ||
| Pennsylvania | Bob Casey* | 50% | Tom Smith | 39% | Oct 12 | Oct 14 | PPP | ||
| Pennsylvania | Bob Casey* | 41% | Tom Smith | 39% | Oct 10 | Oct 14 | Muhlenberg Coll. | ||
| Pennsylvania | Bob Casey* | 49% | Tom Smith | 45% | Oct 09 | Oct 09 | Rasmussen | ||
| Pennsylvania | Bob Casey* | 48% | Tom Smith | 38% | Oct 04 | Oct 08 | Global Strategy | ||
| Pennsylvania | Bob Casey* | 44% | Tom Smith | 35% | Oct 01 | Oct 05 | Siena Coll. | ||
| Pennsylvania | Bob Casey* | 44% | Tom Smith | 36% | Sep 22 | Sep 26 | Muhlenberg Coll. | ||
| Pennsylvania | Bob Casey* | 49% | Tom Smith | 43% | Sep 18 | Sep 24 | Quinnipiac U. | ||
| Pennsylvania | Bob Casey* | 48% | Tom Smith | 38% | Sep 18 | Sep 23 | Franklin+Marshall Coll. | ||
| Pennsylvania | Bob Casey* | 49% | Tom Smith | 42% | Sep 19 | Sep 19 | Rasmussen | ||
| Pennsylvania | Bob Casey* | 31% | Tom Smith | 21% | Sep 12 | Sep 20 | Mercyhurst University | ||
| Pennsylvania | Bob Casey* | 45% | Tom Smith | 33% | Sep 10 | Sep 16 | Muhlenberg Coll. | ||
| Pennsylvania | Bob Casey* | 53% | Tom Smith | 34% | Aug 21 | Aug 23 | Global Strategy | ||
| Pennsylvania | Bob Casey* | 43% | Tom Smith | 28% | Aug 07 | Aug 12 | Franklin+Marshall Coll. | ||
| Pennsylvania | Bob Casey* | 55% | Tom Smith | 37% | Jul 24 | Jul 30 | Quinnipiac U. | ||
| Pennsylvania | Bob Casey* | 46% | Tom Smith | 36% | Jul 21 | Jul 23 | PPP | ||
| Pennsylvania | Bob Casey* | 49% | Tom Smith | 38% | Jul 18 | Jul 18 | Rasmussen | ||
| Pennsylvania | Bob Casey* | 49% | Tom Smith | 32% | Jun 19 | Jun 25 | Quinnipiac U. | ||
| Pennsylvania | Bob Casey* | 51% | Tom Smith | 32% | Jun 05 | Jun 10 | Quinnipiac U. | ||
| Pennsylvania | Bob Casey* | 42% | Tom Smith | 21% | May 29 | Jun 04 | Franklin+Marshall Coll. | ||
| Pennsylvania | Bob Casey* | 48% | Tom Smith | 41% | May 21 | May 21 | Rasmussen | ||
| Pennsylvania | Bob Casey* | 49% | Tom Smith | 33% | May 17 | May 20 | PPP | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Rhode Island | Sheldon Whitehouse* | 65% | Barry Hinckley | 35% | Nov 06 | Nov 06 | Election 2012 | ||
| Rhode Island | Sheldon Whitehouse* | 55% | Barry Hinckley | 33% | Oct 24 | Oct 27 | Fleming and Assocs. | ||
| Rhode Island | Sheldon Whitehouse* | 59% | Barry Hinckley | 30% | Sep 26 | Oct 05 | Brown U. | ||
| Rhode Island | Sheldon Whitehouse* | 56% | Barry Hinckley | 30% | Sep 26 | Sep 29 | Fleming and Assocs. | ||
| Rhode Island | Sheldon Whitehouse* | 50% | Barry Hinckley | 28% | Feb 20 | Feb 23 | Fleming and Assocs. | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Tennessee | Mark Clayton | 30% | Bob Corker* | 65% | Nov 06 | Nov 06 | Election 2012 | ||
| Tennessee | Mark Clayton | 21% | Bob Corker* | 59% | Oct 16 | Oct 21 | Middle Tenn. State U. | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Texas | Paul Sadler | 41% | Ted Cruz | 57% | Nov 06 | Nov 06 | Election 2012 | ||
| Texas | Paul Sadler | 39% | Ted Cruz | 54% | Oct 15 | Oct 21 | U. of Texas | ||
| Texas | Paul Sadler | 24% | Ted Cruz | 50% | Sep 10 | Sep 26 | Texas Lyceum | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Utah | Scott Howell | 30% | Orrin Hatch* | 65% | Nov 06 | Nov 06 | Election 2012 | ||
| Utah | Scott Howell | 26% | Orrin Hatch* | 63% | Oct 26 | Nov 01 | Dan Jones | ||
| Utah | Scott Howell | 22% | Orrin Hatch* | 61% | Oct 09 | Oct 13 | Key Research | ||
| Utah | Scott Howell | 29% | Orrin Hatch* | 63% | Jun 15 | Jun 21 | Dan Jones | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Vermont | Bernie Sanders* | 71% | John MacGovern | 25% | Nov 06 | Nov 06 | Election 2012 | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Virginia | Tim Kaine | 53% | George Allen | 47% | Nov 06 | Nov 06 | Election 2012 | ||
| Virginia | Tim Kaine | 49% | George Allen | 47% | Nov 04 | Nov 04 | Rasmussen | ||
| Virginia | Tim Kaine | 48% | George Allen | 46% | Nov 02 | Nov 04 | IPSOS | ||
| Virginia | Tim Kaine | 52% | George Allen | 46% | Nov 03 | Nov 04 | PPP | ||
| Virginia | Tim Kaine | 49% | George Allen | 41% | Nov 01 | Nov 03 | Zogby | ||
| Virginia | Tim Kaine | 49% | George Allen | 46% | Nov 01 | Nov 02 | Marist Coll. | ||
| Virginia | Tim Kaine | 47% | George Allen | 44% | Oct 30 | Nov 01 | IPSOS | ||
| Virginia | Tim Kaine | 48% | George Allen | 48% | Oct 30 | Oct 30 | Pulse Opinion Research | ||
| Virginia | Tim Kaine | 47% | George Allen | 45% | Oct 27 | Oct 31 | IPSOS | ||
| Virginia | Tim Kaine | 45% | George Allen | 46% | Oct 27 | Oct 29 | Zogby | ||
| Virginia | Tim Kaine | 50% | George Allen | 46% | Oct 23 | Oct 28 | Quinnipiac U. | ||
| Virginia | Tim Kaine | 42% | George Allen | 47% | Oct 23 | Oct 26 | Roanoke Coll. | ||
| Virginia | Tim Kaine | 45% | George Allen | 45% | Oct 23 | Oct 25 | Zogby | ||
| Virginia | Tim Kaine | 49% | George Allen | 48% | Oct 24 | Oct 24 | Rasmussen | ||
| Virginia | Tim Kaine | 51% | George Allen | 44% | Oct 22 | Oct 26 | Abt SRBI | ||
| Virginia | Tim Kaine | 51% | George Allen | 44% | Oct 22 | Oct 26 | Washington Post | ||
| Virginia | Tim Kaine | 46% | George Allen | 44% | Oct 22 | Oct 24 | Zogby | ||
| Virginia | Tim Kaine | 49% | George Allen | 48% | Oct 18 | Oct 18 | Rasmussen | ||
| Virginia | Tim Kaine | 46% | George Allen | 44% | Oct 15 | Oct 15 | Pulse Opinion Research | ||
| Virginia | Tim Kaine | 50% | George Allen | 45% | Oct 15 | Oct 16 | PPP | ||
| Virginia | Tim Kaine | 48% | George Allen | 47% | Oct 11 | Oct 11 | Rasmussen | ||
| Virginia | Tim Kaine | 44% | George Allen | 47% | Oct 08 | Oct 08 | Pulse Opinion Research | ||
| Virginia | Tim Kaine | 47% | George Allen | 46% | Oct 07 | Oct 09 | Marist Coll. | ||
| Virginia | Tim Kaine | 51% | George Allen | 44% | Oct 04 | Oct 09 | Quinnipiac U. | ||
| Virginia | Tim Kaine | 51% | George Allen | 44% | Oct 04 | Oct 07 | PPP | ||
| Virginia | Tim Kaine | 52% | George Allen | 45% | Oct 04 | Oct 04 | Rasmussen | ||
| Virginia | Tim Kaine | 50% | George Allen | 43% | Sep 19 | Oct 17 | Old Dominion U. | ||
| Virginia | Tim Kaine | 49% | George Allen | 44% | Sep 30 | Oct 01 | Marist Coll. | ||
| Virginia | Tim Kaine | 44% | George Allen | 44% | Sep 24 | Sep 26 | Suffolk U. | ||
| Virginia | Tim Kaine | 47% | George Allen | 37% | Sep 19 | Sep 28 | Roanoke Coll. | ||
| Virginia | Tim Kaine | 47% | George Allen | 43% | Sep 16 | Sep 18 | Fox News | ||
| Virginia | Tim Kaine | 47% | George Allen | 46% | Sep 13 | Sep 16 | PPP | ||
| Virginia | Tim Kaine | 51% | George Allen | 43% | Sep 12 | Sep 16 | Washington Post | ||
| Virginia | Tim Kaine | 51% | George Allen | 44% | Sep 11 | Sep 17 | Quinnipiac U. | ||
| Virginia | Tim Kaine | 47% | George Allen | 45% | Sep 13 | Sep 13 | Rasmussen | ||
| Virginia | Tim Kaine | 46% | George Allen | 46% | Sep 09 | Sep 11 | Marist Coll. | ||
| Virginia | Tim Kaine | 45% | George Allen | 45% | Aug 23 | Aug 23 | Rasmussen | ||
| Virginia | Tim Kaine | 46% | George Allen | 46% | Aug 16 | Aug 19 | PPP | ||
| Virginia | Tim Kaine | 46% | George Allen | 46% | Aug 07 | Aug 07 | Rasmussen | ||
| Virginia | Tim Kaine | 48% | George Allen | 46% | Jul 31 | Aug 06 | Quinnipiac U. | ||
| Virginia | Tim Kaine | 46% | George Allen | 45% | Jul 16 | Jul 17 | Rasmussen | ||
| Virginia | Tim Kaine | 44% | George Allen | 46% | Jul 10 | Jul 16 | Quinnipiac U. | ||
| Virginia | Tim Kaine | 46% | George Allen | 44% | Jul 05 | Jul 08 | PPP | ||
| Virginia | Tim Kaine | 46% | George Allen | 44% | Jun 03 | Jun 03 | Rasmussen | ||
| Virginia | Tim Kaine | 44% | George Allen | 43% | May 30 | Jun 04 | Quinnipiac U. | ||
| Virginia | Tim Kaine | 49% | George Allen | 43% | May 17 | May 20 | Marist Coll. | ||
| Virginia | Tim Kaine | 46% | George Allen | 46% | Apr 28 | May 02 | Washington Post | ||
| Virginia | Tim Kaine | 46% | George Allen | 45% | Apr 26 | Apr 29 | PPP | ||
| Virginia | Tim Kaine | 45% | George Allen | 46% | Apr 23 | Apr 23 | Rasmussen | ||
| Virginia | Tim Kaine | 39% | George Allen | 46% | Mar 26 | Apr 05 | Roanoke Coll. | ||
| Virginia | Tim Kaine | 44% | George Allen | 46% | Mar 20 | Mar 20 | Rasmussen | ||
| Virginia | Tim Kaine | 47% | George Allen | 44% | Mar 13 | Mar 18 | Quinnipiac U. | ||
| Virginia | Tim Kaine | 48% | George Allen | 39% | Feb 29 | Mar 02 | Marist Coll. | ||
| Virginia | Tim Kaine | 46% | George Allen | 46% | Feb 21 | Feb 21 | Rasmussen | ||
| Virginia | Tim Kaine | 37% | George Allen | 45% | Feb 13 | Feb 26 | Roanoke Coll. | ||
| Virginia | Tim Kaine | 40% | George Allen | 42% | Feb 04 | Feb 13 | Christopher Newport U. | ||
| Virginia | Tim Kaine | 45% | George Allen | 44% | Feb 01 | Feb 06 | Quinnipiac U. | ||
| Virginia | Tim Kaine | 46% | George Allen | 46% | Jan 16 | Jan 18 | Mason Dixon | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Washington | Maria Cantwell* | 60% | Michael Baumgartner | 40% | Nov 06 | Nov 06 | Election 2012 | ||
| Washington | Maria Cantwell* | 57% | Michael Baumgartner | 39% | Nov 01 | Nov 03 | PPP | ||
| Washington | Maria Cantwell* | 61% | Michael Baumgartner | 33% | Oct 18 | Oct 31 | U. of Washington | ||
| Washington | Maria Cantwell* | 52% | Michael Baumgartner | 37% | Oct 14 | Oct 14 | Rasmussen | ||
| Washington | Maria Cantwell* | 58% | Michael Baumgartner | 35% | Oct 01 | Oct 16 | The Washington Poll | ||
| Washington | Maria Cantwell* | 58% | Michael Baumgartner | 35% | Oct 01 | Oct 16 | U. of Washington | ||
| Washington | Maria Cantwell* | 57% | Michael Baumgartner | 37% | Sep 26 | Sep 26 | Rasmussen | ||
| Washington | Maria Cantwell* | 51% | Michael Baumgartner | 40% | Jul 16 | Jul 18 | SurveyUSA | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| West Virginia | Joe Manchin* | 61% | John Raese | 37% | Nov 06 | Nov 06 | Election 2012 | ||
| West Virginia | Joe Manchin* | 66% | John Raese | 27% | Aug 22 | Aug 25 | R.L. Repass | ||
| West Virginia | Joe Manchin* | 74% | John Raese | 22% | Apr 25 | Apr 28 | R.L. Repass | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Wisconsin | Tammy Baldwin | 52% | Tommy Thompson | 46% | Nov 06 | Nov 06 | Election 2012 | ||
| Wisconsin | Tammy Baldwin | 51% | Tommy Thompson | 48% | Nov 02 | Nov 03 | PPP | ||
| Wisconsin | Tammy Baldwin | 47% | Tommy Thompson | 48% | Oct 30 | Oct 30 | Pulse Opinion Research | ||
| Wisconsin | Tammy Baldwin | 48% | Tommy Thompson | 48% | Oct 29 | Oct 29 | Rasmussen | ||
| Wisconsin | Tammy Baldwin | 48% | Tommy Thompson | 47% | Oct 28 | Oct 29 | Marist Coll. | ||
| Wisconsin | Tammy Baldwin | 43% | Tommy Thompson | 46% | Oct 25 | Oct 29 | St. Norbert Coll. | ||
| Wisconsin | Tammy Baldwin | 47% | Tommy Thompson | 43% | Oct 25 | Oct 28 | Marquette Law School | ||
| Wisconsin | Tammy Baldwin | 47% | Tommy Thompson | 48% | Oct 25 | Oct 25 | Rasmussen | ||
| Wisconsin | Tammy Baldwin | 50% | Tommy Thompson | 47% | Oct 18 | Oct 20 | Angus-Reid | ||
| Wisconsin | Tammy Baldwin | 46% | Tommy Thompson | 48% | Oct 18 | Oct 18 | Rasmussen | ||
| Wisconsin | Tammy Baldwin | 47% | Tommy Thompson | 45% | Oct 15 | Oct 17 | Mason Dixon | ||
| Wisconsin | Tammy Baldwin | 49% | Tommy Thompson | 45% | Oct 15 | Oct 17 | Marist Coll. | ||
| Wisconsin | Tammy Baldwin | 47% | Tommy Thompson | 46% | Oct 15 | Oct 15 | Pulse Opinion Research | ||
| Wisconsin | Tammy Baldwin | 45% | Tommy Thompson | 46% | Oct 11 | Oct 14 | Marquette Law School | ||
| Wisconsin | Tammy Baldwin | 51% | Tommy Thompson | 47% | Oct 09 | Oct 09 | Rasmussen | ||
| Wisconsin | Tammy Baldwin | 47% | Tommy Thompson | 45% | Oct 08 | Oct 08 | Pulse Opinion Research | ||
| Wisconsin | Tammy Baldwin | 48% | Tommy Thompson | 46% | Oct 04 | Oct 09 | Quinnipiac U. | ||
| Wisconsin | Tammy Baldwin | 49% | Tommy Thompson | 46% | Oct 04 | Oct 06 | PPP | ||
| Wisconsin | Tammy Baldwin | 48% | Tommy Thompson | 44% | Sep 27 | Sep 30 | Marquette Law School | ||
| Wisconsin | Tammy Baldwin | 49% | Tommy Thompson | 45% | Sep 18 | Sep 19 | PPP | ||
| Wisconsin | Tammy Baldwin | 48% | Tommy Thompson | 46% | Sep 16 | Sep 18 | Marist Coll. | ||
| Wisconsin | Tammy Baldwin | 49% | Tommy Thompson | 46% | Sep 17 | Sep 17 | Rasmussen | ||
| Wisconsin | Tammy Baldwin | 47% | Tommy Thompson | 47% | Sep 11 | Sep 17 | Quinnipiac U. | ||
| Wisconsin | Tammy Baldwin | 50% | Tommy Thompson | 41% | Sep 13 | Sep 16 | Marquette Law School | ||
| Wisconsin | Tammy Baldwin | 44% | Tommy Thompson | 50% | Aug 15 | Aug 21 | Quinnipiac U. | ||
| Wisconsin | Tammy Baldwin | 41% | Tommy Thompson | 50% | Aug 16 | Aug 19 | Marquette Law School | ||
| Wisconsin | Tammy Baldwin | 44% | Tommy Thompson | 49% | Aug 16 | Aug 19 | PPP | ||
| Wisconsin | Tammy Baldwin | 43% | Tommy Thompson | 54% | Aug 15 | Aug 15 | Rasmussen | ||
| Wisconsin | Tammy Baldwin | 43% | Tommy Thompson | 48% | Aug 02 | Aug 05 | Marquette Law School | ||
| Wisconsin | Tammy Baldwin | 47% | Tommy Thompson | 47% | Jul 31 | Aug 06 | Quinnipiac U. | ||
| Wisconsin | Tammy Baldwin | 48% | Tommy Thompson | 41% | Jul 25 | Jul 25 | Rasmussen | ||
| Wisconsin | Tammy Baldwin | 41% | Tommy Thompson | 45% | Jul 05 | Jul 08 | Marquette Law School | ||
| Wisconsin | Tammy Baldwin | 45% | Tommy Thompson | 45% | Jul 05 | Jul 08 | PPP | ||
| Wisconsin | Tammy Baldwin | 41% | Tommy Thompson | 49% | Jun 13 | Jun 16 | Marquette Law School | ||
| Wisconsin | Tammy Baldwin | 42% | Tommy Thompson | 48% | Feb 16 | Feb 19 | Marquette Law School | ||
| State | Democrat | D % | Republican | R % | I | I % | Start | End | Pollster |
| Wyoming | Tim Chesnut | 22% | John Barrasso* | 76% | Nov 06 | Nov 06 | Election 2012 | ||