Election,Dem,GOP,Other,D Chg,R Chg,,President,Gain,6 Yr
2004,44,55,1,-4,4,,Bush,4,
2002,48,51,1,-2,1,,Bush,1,
2000,50,50,0,5,-5,,Clinton,5,
1998,45,55,0,0,0,,Clinton,0,0
1996,45,55,0,-3,3,,Clinton,-3,
1994,48,52,0,-9,9,,Clinton,-9,
1992,57,43,0,1,-1,,Bush,-1,
1990,56,44,0,1,-1,,Bush,-1,
1988,55,45,0,0,0,,Reagan,0,
1986,55,45,0,8,-8,,Reagan,-8,-8
1984,47,53,0,1,-1,,Reagan,-1,
1982,46,54,0,0,1,,Reagan,1,
1980,46,53,1,-12,12,,Carter,-12,
1978,58,41,1,-3,3,,Carter,-3,
1976,61,38,1,1,0,,Ford,0,
1974,60,38,2,4,-4,,Ford,-4,-4
1972,56,42,2,2,-2,,Nixon,-2,
1970,54,44,2,-3,1,,Nixon,1,
1968,57,43,0,-7,7,,Johnson,-7,
1966,64,36,0,-4,4,,Johnson,-4,-4
1964,68,32,0,2,-2,,Johnson,2,
1962,66,34,0,2,-2,,Kennedy,2,
1960,64,36,0,-1,1,,Eisenhower,1,
1958,65,35,0,16,-12,,Eisenhower,-12,-12
1956,49,47,0,1,0,,Eisenhower,0,
1954,48,47,1,1,-1,,Eisenhower,-1,
1952,47,48,1,-2,1,,Truman,-2,
1950,49,47,0,-5,5,,Truman,-5,-5
1948,54,42,0,9,-9,,Truman,9,
1946,45,51,0,-12,13,,Roosevelt,-12,
1944,57,38,1,0,0,,Roosevelt,0,
1942,57,38,1,-9,10,,Roosevelt,-9,
1940,66,28,2,-3,5,,Roosevelt,-3,
1938,69,23,4,-7,7,,Roosevelt,-7,-7
1936,76,16,4,7,-9,,Roosevelt,7,
1934,69,25,2,10,-11,,Roosevelt,10,
1932,59,36,1,12,-12,,Hoover,-12,
1930,47,48,1,8,-8,,Hoover,-8,
1928,39,56,1,-7,8,,Coolidge,8,
1926,46,48,1,5,-6,,Coolidge,-6,-6
1924,41,54,1,-1,1,,Harding,1,
1922,42,53,1,5,-6,,Harding,-6,
1920,37,59,0,-10,10,,Wilson,-10,
1918,47,49,0,-7,7,,Wilson,-7,-7
1916,54,42,0,-2,2,,Wilson,-2,
1914,56,40,0,,,,Wilson,,
,,,,,,,,,-6.625
Legend,,,,,,,,,
A,Election year,,,,,,,,
B,Democrats elected to the Senate,,,,,,,,
C,Republicans elected to the Senate,,,,,,,,
D,Others elected to the Senate,,,,,,,,
E,Net gain for the Democrats,,,,,,,,
F,Net gain for the Republicans,,,,,,,,
H,President on election day,,,,,,,,
I,Net Gain for the President's party,,,,,,,,
J,Results in the 6th year of an administration,,,,,,,,

"Note: In 1926, William Vare (R-PA) was not seated due to corruption",,,,,,,,,