LIST: Seats in Congress Gained/Lost by President’s Party

via ucsb.edu:

 Seats in Congress Gained/Lost by the President’s Party in Mid-Term Elections
    F. Roosevelt – Trump 

Year Lame Duck?
President
Party president’s job approval %
House Seats
Senate Seats
early Aug late Aug early Sep late Sep early Oct late Oct
1934 Franklin D. Roosevelt D nd nd nd nd nd nd +9 +9
1938 Franklin D. Roosevelt D nd nd nd nd nd 60 -71 -6
1942 Franklin D. Roosevelt D 74 nd 74 nd nd nd -55 -9
1946 Harry S. Truman D nd nd 33 nd nd 27 -45 -12
1950 LD* Harry S. Truman D nd 43 35 35 43 41
-29
-6
1954 Dwight D. Eisenhower R 67 62 nd 66 62 nd -18 -1
1958 LD Dwight D. Eisenhower R 58 56 56 54 57 nd -48
-13
1962 John F. Kennedy D nd 67 nd 63 nd 61 -4 +3
1966 Lyndon B. Johnson D 51 47 nd nd 44 44 -47
-4
1970 Richard Nixon R 55 55 57 51 58 nd -12 +2
1974 ± Gerald R. Ford (Nixon) R 71 nd 66 50 53 nd -48
-5
1978 Jimmy Carter D 39 43 43 48 nd 49 -15 -3
1982 Ronald Reagan R 41 42 nd 42 nd 42 -26 +1
1986 LD Ronald Reagan R nd 64 nd 63 64 nd -5
-8
1990 George Bush R 75 73 54 nd nd 57 -8 -1
1994 William J. Clinton D 43 40 40 44 43 48 -52 -8
1998 LD William J. Clinton D 65 62 63 66 65 65 +5
0
2002 George W. Bush R nd 66 66 66 68 67 +8 +2
2006 LD George W. Bush R 37 42 39 44 37 37 -30
-6
2010 Barack Obama D 44 44 45 45 45 45 -63 -6
2014 LD Barack Obama D 42 42 41 43 42 41 -13
-9
2018 Donald J Trump R 40

Approval

 

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