Editing Democratic Party (United States) (section)

=== In congressional elections: 1950–present ===
{{see also|Party divisions of United States Congresses}}
{| class="wikitable"
! colspan="3" |House of Representatives
| rowspan="999" |
! rowspan="2" |President
| rowspan="999" |
! colspan="3" |Senate
|-
!Election
year
!No. of
seats won
!+/–
!No. of
seats won
!+/–
!Election
year
|-
![[United States House of Representatives elections, 1950|1950]]
| {{Party shading/Democratic}} |{{Composition bar|235|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 28
| {{Party shading/Democratic}} |[[Harry S. Truman]]
| {{Party shading/Democratic}} |{{Composition bar|49|96|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 5
![[United States Senate elections, 1950|1950]]
|-
![[United States House of Representatives elections, 1952|1952]]
| {{Party shading/Republican}} |{{Composition bar|213|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 22
| rowspan="4" {{Party shading/Republican}} |[[Dwight D. Eisenhower]]
| {{Party shading/Republican}} |{{Composition bar|47|96|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 2
![[United States Senate elections, 1952|1952]]
|-
![[United States House of Representatives elections, 1954|1954]]
| {{Party shading/Democratic}} |{{Composition bar|232|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 19
| {{Party shading/Democratic}} |{{Composition bar|49|96|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 2
![[United States Senate elections, 1954|1954]]
|-
![[United States House of Representatives elections, 1956|1956]]
| {{Party shading/Democratic}} |{{Composition bar|234|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 2
| {{Party shading/Democratic}} |{{Composition bar|49|96|hex={{party color|Democratic Party (US)}}}}
|{{steady}} 0
![[United States Senate elections, 1956|1956]]
|-
![[United States House of Representatives elections, 1958|1958]]
| {{Party shading/Democratic}} |{{Composition bar|283|437|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 49
| {{Party shading/Democratic}} |{{Composition bar|64|98|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 15
![[United States Senate elections, 1958|1958]]
|-
![[United States House of Representatives elections, 1960|1960]]
| {{Party shading/Democratic}} |{{Composition bar|262|437|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 21
| rowspan="2" {{Party shading/Democratic}} |[[John F. Kennedy]]
| {{Party shading/Democratic}} |{{Composition bar|64|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 1
![[United States Senate elections, 1960|1960]]
|-
![[United States House of Representatives elections, 1962|1962]]
| {{Party shading/Democratic}} |{{Composition bar|258|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 4
| {{Party shading/Democratic}} |{{Composition bar|66|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 3
![[United States Senate elections, 1962|1962]]
|-
![[United States House of Representatives elections, 1964|1964]]
| {{Party shading/Democratic}} |{{Composition bar|295|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 37
| rowspan="2" {{Party shading/Democratic}} |[[Lyndon B. Johnson]]
| {{Party shading/Democratic}} |{{Composition bar|68|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 2
![[United States Senate elections, 1964|1964]]
|-
![[United States House of Representatives elections, 1966|1966]]
| {{Party shading/Democratic}} |{{Composition bar|248|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 47
| {{Party shading/Democratic}} |{{Composition bar|64|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 3
![[United States Senate elections, 1966|1966]]
|-
![[United States House of Representatives elections, 1968|1968]]
| {{Party shading/Democratic}} |{{Composition bar|243|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 5
| rowspan="3" {{Party shading/Republican}} |[[Richard Nixon]]
| {{Party shading/Democratic}} |{{Composition bar|57|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 5
![[United States Senate elections, 1968|1968]]
|-
![[United States House of Representatives elections, 1970|1970]]
| {{Party shading/Democratic}} |{{Composition bar|255|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 12
| {{Party shading/Democratic}} |{{Composition bar|54|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 3
![[United States Senate elections, 1970|1970]]
|-
![[United States House of Representatives elections, 1972|1972]]
| {{Party shading/Democratic}} |{{Composition bar|242|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 13
| {{Party shading/Democratic}} |{{Composition bar|56|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 2
![[United States Senate elections, 1972|1972]]
|-
![[United States House of Representatives elections, 1974|1974]]
| {{Party shading/Democratic}} |{{Composition bar|291|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 49
| {{Party shading/Republican}} |[[Gerald Ford]]
| {{Party shading/Democratic}} |{{Composition bar|60|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 4
![[United States Senate elections, 1974|1974]]
|-
![[United States House of Representatives elections, 1976|1976]]
| {{Party shading/Democratic}} |{{Composition bar|292|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 1
| rowspan="2" {{Party shading/Democratic}} |[[Jimmy Carter]]
| {{Party shading/Democratic}} |{{Composition bar|61|100|hex={{party color|Democratic Party (US)}}}}
|{{steady}} 0
![[United States Senate elections, 1976|1976]]
|-
![[United States House of Representatives elections, 1978|1978]]
| {{Party shading/Democratic}} |{{Composition bar|277|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 15
| {{Party shading/Democratic}} |{{Composition bar|58|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 3
![[United States Senate elections, 1978|1978]]
|-
![[United States House of Representatives elections, 1980|1980]]
| {{Party shading/Democratic}} |{{Composition bar|243|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 34
| rowspan="4" {{Party shading/Republican}} |[[Ronald Reagan]]
| {{Party shading/Republican}} |{{Composition bar|46|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 12
![[United States Senate elections, 1980|1980]]
|-
![[United States House of Representatives elections, 1982|1982]]
| {{Party shading/Democratic}} |{{Composition bar|269|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 26
| {{Party shading/Republican}} |{{Composition bar|46|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 1
![[United States Senate elections, 1982|1982]]
|-
![[United States House of Representatives elections, 1984|1984]]
| {{Party shading/Democratic}} |{{Composition bar|253|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 16
| {{Party shading/Republican}} |{{Composition bar|47|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 2
![[United States Senate elections, 1984|1984]]
|-
![[United States House of Representatives elections, 1986|1986]]
| {{Party shading/Democratic}} |{{Composition bar|258|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 5
| {{Party shading/Democratic}} |{{Composition bar|55|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 8
![[United States Senate elections, 1986|1986]]
|-
![[United States House of Representatives elections, 1988|1988]]
| {{Party shading/Democratic}} |{{Composition bar|260|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 2
| rowspan="2" {{Party shading/Republican}} |[[George H. W. Bush]]
| {{Party shading/Democratic}} |{{Composition bar|55|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 1
![[United States Senate elections, 1988|1988]]
|-
![[United States House of Representatives elections, 1990|1990]]
| {{Party shading/Democratic}} |{{Composition bar|267|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 7
| {{Party shading/Democratic}} |{{Composition bar|56|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 1
![[United States Senate elections, 1990|1990]]
|-
![[United States House of Representatives elections, 1992|1992]]
| {{Party shading/Democratic}} |{{Composition bar|258|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 9
| rowspan="4" {{Party shading/Democratic}} |[[Bill Clinton]]
| {{Party shading/Democratic}} |{{Composition bar|57|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 1
![[United States Senate elections, 1992|1992]]
|-
![[United States House of Representatives elections, 1994|1994]]
| {{Party shading/Republican}} |{{Composition bar|204|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 54
| {{Party shading/Republican}} |{{Composition bar|47|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 10
![[United States Senate elections, 1994|1994]]
|-
![[United States House of Representatives elections, 1996|1996]]
| {{Party shading/Republican}} |{{Composition bar|206|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 2
| {{Party shading/Republican}} |{{Composition bar|45|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 2
![[United States Senate elections, 1996|1996]]
|-
![[United States House of Representatives elections, 1998|1998]]
| {{Party shading/Republican}} |{{Composition bar|211|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 5
| {{Party shading/Republican}} |{{Composition bar|45|100|hex={{party color|Democratic Party (US)}}}}
|{{steady}} 0
![[United States Senate elections, 1998|1998]]
|-
![[United States House of Representatives elections, 2000|2000]]
| {{Party shading/Republican}} |{{Composition bar|212|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 1
| rowspan="4" {{Party shading/Republican}} |[[George W. Bush]]
| {{Party shading/Republican}} |{{Composition bar|50|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 5
![[United States Senate elections, 2000|2000]]{{efn|name=tie1|Republican Vice President [[Dick Cheney]] provided a [[List of tie-breaking votes cast by the vice president of the United States|tie-breaking vote]], giving Republicans a majority until June 6, 2001, when [[Jim Jeffords]] left Republicans to join the Democratic Caucus.}}
|-
![[United States House of Representatives elections, 2002|2002]]
| {{Party shading/Republican}} |{{Composition bar|204|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 7
| {{Party shading/Republican}} |{{Composition bar|49|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 2
![[United States Senate elections, 2002|2002]]
|-
![[United States House of Representatives elections, 2004|2004]]
| {{Party shading/Republican}} |{{Composition bar|202|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 2
| {{Party shading/Republican}} |{{Composition bar|45|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 4
![[United States Senate elections, 2004|2004]]
|-
![[United States House of Representatives elections, 2006|2006]]
| {{Party shading/Democratic}} |{{Composition bar|233|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 31
| {{Party shading/Democratic}} |{{Composition bar|51|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 6{{efn|name=ind|Includes [[Independent Democrat|Independents caucusing with the Democrats]].}}
![[United States Senate elections, 2006|2006]]
|-
![[United States House of Representatives elections, 2008|2008]]
| {{Party shading/Democratic}} |{{Composition bar|257|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 21
| rowspan="4" {{Party shading/Democratic}} |[[Barack Obama]]
| {{Party shading/Democratic}} |{{Composition bar|59|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 8{{efn|name=ind}}
![[United States Senate elections, 2008|2008]]
|-
![[United States House of Representatives elections, 2010|2010]]
| {{Party shading/Republican}} |{{Composition bar|193|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 63
| {{Party shading/Democratic}} |{{Composition bar|53|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 6{{efn|name=ind}}
![[United States Senate elections, 2010|2010]]
|-
![[United States House of Representatives elections, 2012|2012]]
| {{Party shading/Republican}} |{{Composition bar|201|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 8
| {{Party shading/Democratic}} |{{Composition bar|55|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 2{{efn|name=ind}}
![[United States Senate elections, 2012|2012]]
|-
![[United States House of Representatives elections, 2014|2014]]
| {{Party shading/Republican}} |{{Composition bar|188|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 13
| {{Party shading/Republican}} |{{Composition bar|46|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 9{{efn|name=ind}}
![[United States Senate elections, 2014|2014]]
|-
![[United States House of Representatives elections, 2016|2016]]
| {{Party shading/Republican}} |{{Composition bar|194|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 6
| rowspan="2" {{Party shading/Republican}} |[[Donald Trump]]
| {{Party shading/Republican}} |{{Composition bar|48|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 2{{efn|name=ind}}
![[United States Senate elections, 2016|2016]]
|-
![[United States House of Representatives elections, 2018|2018]]
| {{Party shading/Democratic}} |{{Composition bar|235|435|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 41
| {{Party shading/Republican}} |{{Composition bar|47|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 1{{efn|name=ind}}
![[United States Senate elections, 2018|2018]]
|-
![[United States House of Representatives elections, 2020|2020]]
| {{Party shading/Democratic}} |{{Composition bar|222|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 13
| rowspan="2" {{Party shading/Democratic}} |[[Joe Biden]]
| {{Party shading/Democratic}} |{{Composition bar|50|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 3{{efn|name=ind}}
![[United States Senate elections, 2020|2020]]{{efn|name=tie2|Democratic Vice President [[Kamala Harris]] provided a [[List of tie-breaking votes cast by the vice president of the United States|tie-breaking vote]], giving Democrats a majority throughout the [[117th Congress]].}}
|-
![[United States House of Representatives elections, 2022|2022]]
| {{Party shading/Republican}} |{{Composition bar|213|435|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 9
| {{Party shading/Democratic}} |{{Composition bar|51|100|hex={{party color|Democratic Party (US)}}}}
|{{increase}} 1{{efn|name=ind}}
![[United States Senate elections, 2022|2022]]
|-
![[2024 United States House of Representatives elections|2024]]
| {{Party shading/Republican}} |{{Composition bar|215|435|hex={{party color|Democratic Party (US)}}}} 
|{{increase}} 2
| {{Party shading/Republican}} |[[Donald Trump]]
| {{Party shading/Republican}} |{{Composition bar|47|100|hex={{party color|Democratic Party (US)}}}}
|{{decrease}} 4{{efn|name=ind}}
![[2024 United States Senate elections|2024]]
|}