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The following table indicates the party of elected officials in the U.S. state of Delaware:
- Governor
- Lieutenant Governor
- Attorney General
- State Treasurer
- State Auditor
- State Insurance Commissioner
The table also indicates the historical party composition in the:
- State Senate
- State House of Representatives
- State delegation to the U.S. Senate
- State delegation to the U.S. House of Representatives
For years in which a presidential election was held, the table indicates which party's nominees received the state's electoral votes.
1777–1900
1901–present
| Year | Executive offices | General Assembly | United States Congress | Electoral votes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Governor | Lt. Governor | Attorney General |
Treasurer | Auditor | Insurance Commissioner |
State Senate |
State House |
U.S. Senator (Class I) |
U.S. Senator (Class II) |
U.S. House | ||
| 1901 | John Hunn (R) | Philip L. Cannon (R) | Herbert H. Ward | Martin B. Burris | Prunal B. Norman | George W. Marshall | 9R, 8D | 20R, 15D | vacant | vacant | L. Heisler Ball (R) | |
| 1902 | ||||||||||||
| 1903 | 10R, 7D | L. Heisler Ball (R) | J. Frank Allee (R) | Henry A. Houston (D) | ||||||||
| 1904 | Roosevelt/ Fairbanks (R)  Y
| |||||||||||
| 1905 | Preston Lea (R) | Isaac T. Parker (R) | Robert H. Richards | 21R, 14D | vacant | Hiram R. Burton (R) | ||||||
| 1906 | ||||||||||||
| 1907 | 11R, 6D | 25R, 10D | Henry A. du Pont (R) | Harry A. Richardson (R) | ||||||||
| 1908 | Taft/ Sherman (R) Y
| |||||||||||
| 1909 | Simeon S. Pennewill (R) | John M. Mendinhall (R) | Andrew C. Gray | 18D, 17R | William H. Heald (R) | |||||||
| 1910 | ||||||||||||
| 1911 | 9R, 8D | 22R, 13D | ||||||||||
| 1912 | Wilson/ Marshall (D) Y
| |||||||||||
| 1913 | Charles R. Miller (R) | Colen Ferguson (D) | Josiah O. Wolcott (D) | 21D, 14R | Willard Saulsbury Jr. (D) | Franklin Brockson (D) | ||||||
| 1914 | ||||||||||||
| 1915 | 19R, 16D | Thomas W. Miller (R) | ||||||||||
| 1916 | Hughes/ Fairbanks (R)  N
| |||||||||||
| 1917 | John G. Townsend Jr. (R) | Lewis E. Eliason (D) | David J. Reinhardt | 10R, 7D | 19D, 16R | Josiah O. Wolcott (D) | Albert F. Polk (D) | |||||
| 1918 | ||||||||||||
| 1919 | 23R, 12D | L. Heisler Ball (R) | Caleb R. Layton (R) | |||||||||
| 1920 | Harding/ Coolidge (R) Y
| |||||||||||
| 1921 | William D. Denney (R) | J. Danforth Bush (R) | Sylvester D. Townsend Jr. | 12R, 5D | 18D, 17R | T. Coleman du Pont (R) | ||||||
| 1922 | ||||||||||||
| 1923 | 11R, 6D | Thomas F. Bayard Jr. (D) | William H. Boyce (D) | |||||||||
| 1924 | Coolidge/ Dawes (R) Y
| |||||||||||
| 1925 | Robert P. Robinson (R) | James H. Anderson (R) | Clarence A. Southerland | 9D, 8R | 22R, 13D | T. Coleman du Pont (R) | Robert G. Houston (R) | |||||
| 1926 | ||||||||||||
| 1927 | Jesse S. Cooper Jr. (D) | 18R, 17D | ||||||||||
| 1928 | Hoover/ Curtis (R) Y
| |||||||||||
| 1929 | C. Douglass Buck (R) | James H. Hazel (R) | Reuben Satterthwaite Jr. | George S. Williams (R) | 9R, 8D | 26R, 9D | John G. Townsend Jr. (R) | Daniel O. Hastings (R) | ||||
| 1930 | ||||||||||||
| 1931 | 12R, 5D | 22R, 13D | ||||||||||
| 1932 | Hoover/ Curtis (R) N
| |||||||||||
| 1933 | Roy F. Corley (R) | Daniel J. Layton (R) | 9R, 8D | 22D, 13R | Wilbur L. Adams (D) | |||||||
| P. Warren Green (R) | ||||||||||||
| 1934 | ||||||||||||
| 1935 | Warren T. Moore (R) | James H. Hazel (R) | James Postles Hammond (R) | 10R, 7D | 23R, 12D | J. George Stewart (R) | ||||||
| 1936 | Roosevelt/ Garner (D) Y
| |||||||||||
| 1937 | Richard McMullen (D) | Edward W. Cooch (D) | Ernest C. Blackstone (D) | James W. Wise (D) | 11R, 6D | 21D, 14R | James H. Hughes (D) | William F. Allen (D) | ||||
| 1938 | ||||||||||||
| 1939 | James R. Morford (R) | Fagan H. Simonton (R) | Benjamin I. Shaw (R) | William J. Swain (R) | 20R, 15D | George S. Williams (R) | ||||||
| 1940 | Roosevelt/ Wallace (D) Y
| |||||||||||
| 1941 | Walter W. Bacon (R) | Isaac J. MacCollum (D) | Peter S. Collins (D) | Harrison M. Manning (D) | 10R, 7D | James M. Tunnell (D) | Philip A. Traynor (D) | |||||
| 1942 | ||||||||||||
| 1943 | Clair J. Killoran (R) | John S. Isaacs (R) | Joseph M. Harrington (R) | 24R, 11D | C. Douglass Buck (R) | Earle D. Willey (R) | ||||||
| 1944 | Roosevelt/ Truman (D) Y
| |||||||||||
| 1945 | Elbert N. Carvel (D) | Jesse S. Cooper Jr. (D) | Wilbur E. Jacobs (D) | 11R, 6D | 22R, 13D | Philip A. Traynor (D) | ||||||
| 1946 | ||||||||||||
| 1947 | Albert W. James (R) | Benjamin F. Johnson (R) | Benjamin I. Shaw (R) | 24R, 11D | John J. Williams (R) | J. Caleb Boggs (R) | ||||||
| 1948 | Dewey/ Warren (R) N
| |||||||||||
| 1949 | Elbert N. Carvel (D) | Alexis I. du Pont Bayard (D) | Willard D. Boyce (D) | James W. W. Baker (D) | 9R, 8D | 18R, 17D | J. Allen Frear Jr. (D) | |||||
| 1950 | ||||||||||||
| 1951 | H. Albert Young (R) | Ralph W. Emerson (R) | G. Dan Enterline (R) | William R. Murphy (R) | 9D, 8R | 19R, 16D | ||||||
| 1952 | Eisenhower/ Nixon (R) Y
| |||||||||||
| 1953 | J. Caleb Boggs (R) | John W. Rollins (R) | Clarence Collins Jr. (R) | 10R, 7D | 18R, 17D | Herbert Warburton (R) | ||||||
| 1954 | ||||||||||||
| 1955 | Joseph D. Craven (D) | Howard H. Dickerson (D) | Clifford E. Hall (D) | Harry S. Smith (D) | 12D, 5R | 27D, 8R | Harris McDowell (D) | |||||
| 1956 | ||||||||||||
| 1957 | David P. Buckson (R) | Vera Davis (R) | Dale E. Wheatley (R) | 13D, 4R | 19D, 16R | Hal Haskell (R) | ||||||
| 1958 | ||||||||||||
| 1959 | Januar D. Bove Jr. (R) | Belle Everett (D) | Ernest E. Killen (D) | 11D, 6R | 26D, 9R | Harris McDowell (D) | ||||||
| 1960 | ||||||||||||
| Kennedy/ Johnson (D) Y
| ||||||||||||
| 1961 | Elbert N. Carvel (D) | Eugene Lammot (D) | 20D, 15R | J. Caleb Boggs (R) | ||||||||
| 1962 | ||||||||||||
| 1963 | David P. Buckson (R) | Robert Short (R) | 10D, 7R | 24D, 11R | ||||||||
| 1964 | Johnson/ Humphrey (D) Y
| |||||||||||
| 1965 | Charles L. Terry Jr. (D) | Sherman W. Tribbitt (D) | Charles F. Moore (D) | 13D, 5R | 30D, 5R | |||||||
| 1966 | ||||||||||||
| 1967 | Daniel Ross (R) | George W. Cripps (R) | 9R, 9D | 23R, 12D | William Roth (R) | |||||||
| 1968 | Nixon/ Agnew (R) Y
| |||||||||||
| 1969 | Russell W. Peterson (R) | Eugene Bookhammer (R) | 13R, 6D | 26R, 13D | ||||||||
| 1970 | ||||||||||||
| 1971 | W. Laird Stabler Jr. (R) | Emily Womach (D) | 23R, 16D | William Roth (R) | Pete du Pont (R) | |||||||
| 1972 | ||||||||||||
| 1973 | Sherman W. Tribbitt (D) | Mary Jornlin (R) | F. Earl McGinnes (D) | 11R, 10D | 21R, 20D | Joe Biden (D) | ||||||
| 1974 | ||||||||||||
| 1975 | Richard R. Wier Jr. (D) | Richard T. Collins (R) | 13D, 8R | 25D, 16R | ||||||||
| 1976 | Carter/ Mondale (D) Y
| |||||||||||
| 1977 | Pete du Pont (R) | James D. McGinnis (D) | Tom Carper (D) | David H. Elliott (R) | 26D, 15R | Thomas B. Evans Jr. (R) | ||||||
| 1978 | ||||||||||||
| 1979 | Richard S. Gebelein (R) | 21D, 20R | ||||||||||
| 1980 | Reagan/ Bush (R) Y
| |||||||||||
| 1981 | Mike Castle (R) | Thomas W. Spruance (R) | 12D, 9R | 25R, 16D | ||||||||
| 1982 | ||||||||||||
| 1983 | Charles Oberly (D) | Janet Rzewnicki (R) | Dennis Greenhouse (D) | 13D, 8R | 25D, 16R | Tom Carper (D) | ||||||
| 1984 | ||||||||||||
| 1985 | Mike Castle (R) | S. B. Woo (D) | David N. Levinson (D) | 22R, 19D | ||||||||
| 1986 | ||||||||||||
| 1987 | ||||||||||||
| 1988 | Bush/ Quayle (R) Y
| |||||||||||
| 1989 | Dale E. Wolf (R) | |||||||||||
| Tom Wagner (R) | ||||||||||||
| 1990 | ||||||||||||
| 1991 | 15D, 6R | 24R, 17D | ||||||||||
| 1992 | ||||||||||||
| Clinton/ Gore (D) Y
| ||||||||||||
| 1993 | Tom Carper (D) | Ruth Ann Minner (D) | Donna Lee Williams (R) | 22R, 19D | Mike Castle (R) | |||||||
| 1994 | ||||||||||||
| 1995 | M. Jane Brady (R) | 12D, 9R | 27R, 14D | |||||||||
| 1996 | ||||||||||||
| 1997 | 12D, 9R | 23R, 18D | ||||||||||
| 1998 | ||||||||||||
| 1999 | Jack Markell (D) | 13D, 8R | 26R, 15D | |||||||||
| 2000 | Gore/ Lieberman (D) N
| |||||||||||
| 2001 | Ruth Ann Minner (D) | John Carney (D) | Tom Carper (D) | |||||||||
| 2002 | ||||||||||||
| 2003 | 29R, 12D | |||||||||||
| 2004 | Kerry/ Edwards (D) N
| |||||||||||
| 2005 | Matthew Denn (D) | 26R, 15D | ||||||||||
| 2006 | Carl Danberg (D) | |||||||||||
| 2007 | Beau Biden (D) | 23R, 18D | ||||||||||
| 2008 | Obama/ Biden (D) Y
| |||||||||||
| 2009 | Jack Markell (D) | Matthew Denn (D) | Velda Jones-Potter (D) | Karen Weldin Stewart (D) | 16D, 5R | 24D, 17R | Ted Kaufman (D) | |||||
| 2010 | 15D, 6R | Chris Coons (D) | ||||||||||
| 2011 | Chipman Flowers Jr. (D) | 14D, 7R | 26D, 15R | John Carney (D) | ||||||||
| 2012 | ||||||||||||
| 2013 | 13D, 8R | 27D, 14R | ||||||||||
| 2014 | ||||||||||||
| 2015 | vacant | Matthew Denn (D) | Ken Simpler (R) | 12D, 9R | 25D, 16R | |||||||
| 2016 | Clinton/ Kaine (D) N
| |||||||||||
| 2017 | John Carney (D) | Bethany Hall-Long (D) | Trinidad Navarro (D) | 11D, 10R | Lisa Blunt Rochester (D) | |||||||
| 2018 | ||||||||||||
| 2019 | Kathy Jennings (D) | Colleen Davis (D) | Kathy McGuiness (D) | 12D, 9R | 26D, 15R | |||||||
| 2020 | Biden/ Harris (D) Y
| |||||||||||
| 2021 | 14D, 7R | |||||||||||
| 2022 | ||||||||||||
| Dennis Greenhouse (D) | ||||||||||||
| 2023 | Lydia York (D) | 15D, 6R | ||||||||||
| 2024 | Harris/ Walz (D) N
| |||||||||||
| 2025 | Matt Meyer (D) | Kyle Evans Gay (D) | 27D, 14R | Sarah McBride (D) | ||||||||
- ^ President of Delaware.
- Was captured and taken prisoner by the British.
- Succeeded to office upon the capture of McKinly and resigned upon the return of George Read, the rightful successor to McKinly.
- ^ Succeeded to office upon the resignation of his predecessor.
- Resigned to accept election as president of Pennsylvania.
- ^ Died in office.
- ^ Resigned.
- ^ Succeeded to office upon the death of his predecessor.
- Successfully contested Patten's election.
- Resigned to accept appointment to U.S. District Court.
- Died before taking office; never served as governor.
- Assumed office upon the death of Governor-elect Molleston.
- ^ Legislature failed to elect a senator.
- ^ Resigned to become United States Secretary of State.
- Assumed office upon the death of Cannon, then was elected to office in his own right.
- Resigned to become Chancellor of the Delaware Court of Chancery.
- ^ Appointed to fill vacancy.
- Resigned due to poor health.
- Resigned December 31, 1970, to become a U.S. Senator.
- In 2008, simultaneously re-elected and elected Vice President of the United States; resigned as senator to take the latter office.
- Resigned office on January 3, 2001, to begin term in the U.S. Senate, and was succeeded as governor by Ruth Ann Minner for the remaining 17 days of his term.
- A special election occurred after the death of Sen. Thurman Adams Jr. (D), who was succeeded by Joseph W. Booth (R) after the 2009 session, flipping the seat from Democratic to Republican.
- Resigned on October 19, 2022, after being convicted for corruption and conflict of interest.
References
See also
| Political party strength in U.S. states | |
|---|---|
| States |
|
| Federal district | Washington, D.C. |
| Territories | |
| List of third-party and independent performances in United States elections | |