US Congress, 1946 to 2026

US Congress, 1946 to 2026

Results from 2000 to 2026

Earlier results may be added later.

2024
  • Top rail House, bottom rail Senate
  • Democratic majority
  • Republican majority
  • Dashed: 2026 is provisional
  • Before 2000: not available to select
Senate special elections
Chamber

Republicans took the Senate in 2024, flipping 4 seats

Senate 2024

35 seats up · 4 flipped

  • Democrat
  • Republican
  • Independent
  • Flipped seat
  • Leading, not called
  • No race
  • Result not yet entered
  • 2Two races: regular and special election
  • Democrat
  • Republican
  • Independent
  • Vacant
  • Not yet entered
  • One square per seat, grouped by party

Years before 2000 show as a faded track on the railway but have no map.

House

119th Congress, elected 2024

No independents or vacancies

218 seats for a majority

Senate

119th Congress, elected 2024

2 independents who caucus with the Democrats

51 seats for a majority. A 50-50 Senate is controlled by the vice president's party.

Who held the majority

Seats by party at the opening of each Congress, 80th to 120th. Select one from 2001.

  • Democrat
  • Republican
  • Independent, next to the party they caucus with
  • Half the seats
  • Strip under each row: majority for most of the Congress
  • Shaded: one party held the presidency, House and Senate
1947
1949
1951
1953
1955
1957
1959
1961
1963
1965
1967
1969
1971
1973
1975
1977
1979
1981

1980: Republicans take the Senate. Ending 26 years of Democratic control of the Senate.

1983
1985
1987
1989
1991
1993
1995

1994: Republicans take the House and Senate. Ending 40 years of Democratic control of the House.

1997
1999

2006: Democrats take the House and Senate. Ending 12 years of Republican control of the House.

2014: Republicans take the Senate. Ending 8 years of Democratic control of the Senate.

2018: Democrats take the House. Ending 8 years of Republican control of the House.

119th Congress, 2025 to 2027, elected 2024. President: Donald Trump (R). House: 215 D, 220 R, Republican majority. Senate: 45 D, 53 R, 2 I, Republican majority. Republicans held the presidency, House and Senate.

All the numbers
Seats at the opening of each Congress, and the president
CongressYearsPresidentHouse DROtherMajoritySenate DROtherMajority
801947 to 1949Harry Truman (D)1882461 otherR44511 vacantR
811949 to 1951Harry Truman (D)2631711 otherD54420D
821951 to 1953Harry Truman (D)2351991 ID49470D
831953 to 1955Dwight Eisenhower (R)2132211 IR47481 IR
841955 to 1957Dwight Eisenhower (R)2322030D47472 ID
851957 to 1959Dwight Eisenhower (R)2322030D49470D
861959 to 1961Dwight Eisenhower (R)2821531 ID64340D
871961 to 1963John F. Kennedy (D)2641730D65350D
881963 to 1965John F. Kennedy (D)2581761 ID66340D
891965 to 1967Lyndon Johnson (D)2951400D68320D
901967 to 1969Lyndon Johnson (D)2481870D64360D
911969 to 1971Richard Nixon (R)2431920D57430D
921971 to 1973Richard Nixon (R)2551800D54441 I, 1 otherD
931973 to 1975Richard Nixon (R)2431920D56421 I, 1 otherD
941975 to 1977Gerald Ford (R)2911440D60371 I, 1 other, 1 vacantD
951977 to 1979Jimmy Carter (D)2921430D61381 ID
961979 to 1981Jimmy Carter (D)2781570D58411 ID
971981 to 1983Ronald Reagan (R)2431920D46531 IR
981983 to 1985Ronald Reagan (R)2691660D46540R
991985 to 1987Ronald Reagan (R)2531811 vacantD47530R
1001987 to 1989Ronald Reagan (R)2581770D55450D
1011989 to 1991George H.W. Bush (R)2601750D55450D
1021991 to 1993George H.W. Bush (R)2671671 ID56440D
1031993 to 1995Bill Clinton (D)2581761 ID57430D
1041995 to 1997Bill Clinton (D)2042301 IR47530R
1051997 to 1999Bill Clinton (D)2072262 IR45550R
1061999 to 2001Bill Clinton (D)2112231 IR45550R
1072001 to 2003George W. Bush (R)2122212 IR50500D (note 1)
1082003 to 2005George W. Bush (R)2052291 IR48511 IR
1092005 to 2007George W. Bush (R)2022321 IR44551 IR
1102007 to 2009George W. Bush (R)2332020D49492 ID
1112009 to 2011Barack Obama (D)2571780D56412 I, 1 vacantD
1122011 to 2013Barack Obama (D)1932420R51472 ID
1132013 to 2015Barack Obama (D)2012340R53452 ID
1142015 to 2017Barack Obama (D)1882470R44542 IR
1152017 to 2019Donald Trump (R)1942410R46522 IR
1162019 to 2021Donald Trump (R)2351991 vacantD45532 IR
1172021 to 2023Joe Biden (D)2222121 vacantD46512 I, 1 vacantD (note 2)
1182023 to 2025Joe Biden (D)2132220R48493 ID
1192025 to 2027Donald Trump (R)2152200R45532 IR
1202027 to 2029 (provisional)Donald Trump (R)n/an/an/an/an/an/an/an/a

Source: US House of Representatives, Office of the Historian; US Senate Historical Office. Seats at the opening of each Congress.Data as of

The midterm penalty

Seats gained or lost by the party holding the White House in each midterm, 1946 to 2026.

  • Democratic president
  • Republican president
  • Provisional
  • No change

2022: Joe Biden (D). House seats held by the president's party: 222 before, 213 after, -9.

2022: Joe Biden (D). Senate seats held by the president's party: 50 before, 51 after, +1.

Across the 20 midterms from 1946 to 2022, the median change in the House for the party holding the White House was -22 seats.

All the numbers
Seats held by the president's party before and after each midterm
YearPresidentHouse beforeAfterChangeSenate beforeAfterChange
1946Harry Truman (D)244188-565644-12
1950Harry Truman (D)263235-285449-5
1954Dwight Eisenhower (R)221203-184947-2
1958Dwight Eisenhower (R)203153-504734-13
1962John F. Kennedy (D)264258-66466+2
1966Lyndon Johnson (D)295248-476764-3
1970Richard Nixon (R)192180-124344+1
1974Gerald Ford (R)192144-484137-4
1978Jimmy Carter (D)292278-146259-3
1982Ronald Reagan (R)192166-2654540
1986Ronald Reagan (R)181177-45345-8
1990George H.W. Bush (R)175167-84544-1
1994Bill Clinton (D)259205-545647-9
1998Bill Clinton (D)208212+445450
2002George W. Bush (R)222229+74951+2
2006George W. Bush (R)232202-305549-6
2010Barack Obama (D)257193-645953-6
2014Barack Obama (D)201188-135546-9
2018Donald Trump (R)241199-425153+2
2022Joe Biden (D)222213-95051+1
2026 (provisional)Donald Trump (R)220n/an/a53n/an/a

Source: US House of Representatives, Office of the Historian; US Senate Historical Office. Senate counts before each midterm are from election day; counts after are from the opening of the new Congress.Data as of