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Incumbent Tenure
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The 1990 United States Senate election in Delaware was held on November 6, 1990. Incumbent Democratic U.S. Senator Joe Biden won re-election to a fourth term, defeating Republican challenger M. Jane Brady.
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Joe Biden (incumbent) | 112,918 | 62.68% | +2.57% | |
| Republican | M. Jane Brady | 64,554 | 35.83% | -4.06% | |
| Libertarian | Lee Rosenbaum | 2,680 | 1.49% | ||
| Write-ins | 5 | 0.00% | |||
| Majority | 48,364 | 26.85% | +6.62% | ||
| Turnout | 180,157 | ||||
| Democratic hold | Swing | ||||
| District [3] | Joseph R. Biden, Jr. Democratic | M. Jane Brady Republican | Lee Rosenbaum Libertarian |
|---|---|---|---|
| District 1 | 3,289 | 829 | 72 |
| District 2 | 1,904 | 170 | 24 |
| District 3 | 1,604 | 133 | 20 |
| District 4 | 3,204 | 1,762 | 79 |
| District 5 | 2,992 | 643 | 51 |
| District 6 | 2,385 | 1,484 | 63 |
| District 7 | 3,250 | 2,419 | 97 |
| District 8 | 2,817 | 1,669 | 71 |
| District 9 | 2,361 | 1,142 | 55 |
| District 10 | 2,688 | 2,019 | 70 |
| District 11 | 3,111 | 2,999 | 87 |
| District 12 | 3,307 | 2,878 | 68 |
| District 13 | 2,915 | 1,313 | 53 |
| District 14 | 2,758 | 841 | 40 |
| District 15 | 2,488 | 613 | 35 |
| District 16 | 2,551 | 709 | 50 |
| District 17 | 3,343 | 1,393 | 89 |
| District 18 | 2,275 | 1,098 | 63 |
| District 19 | 3,191 | 1,591 | 63 |
| District 20 | 4,260 | 2,872 | 106 |
| District 21 | 2,834 | 1,775 | 77 |
| District 22 | 3,165 | 2,568 | 90 |
| District 23 | 2,380 | 1,517 | 83 |
| District 24 | 2,215 | 1,323 | 73 |
| District 25 | 1,756 | 1,113 | 67 |
| District 26 | 2,884 | 1,401 | 87 |
| District 27 | 3,797 | 2,263 | 94 |
| District 28 | 2,694 | 1,150 | 71 |
| District 29 | 2,302 | 1,460 | 85 |
| District 30 | 2,194 | 1,408 | 76 |
| District 31 | 2,562 | 1,812 | 56 |
| District 32 | 1,765 | 1,414 | 63 |
| District 33 | 2,175 | 1,717 | 69 |
| District 34 | 1,593 | 1,377 | 57 |
| District 35 | 2,209 | 1,480 | 67 |
| District 36 | 2,847 | 1,734 | 45 |
| District 37 | 3,891 | 2,742 | 83 |
| District 38 | 4,030 | 2,713 | 65 |
| District 39 | 2,571 | 1,823 | 32 |
| District 40 | 3,035 | 1,490 | 34 |
| District 41 | 3,326 | 1,697 | 50 |
| Total | 112,918 | 64,554 | 2,680 |
The 1990 United States Senate elections were held on Tuesday, November 6, 1990, with the 33 seats of Class 2 contested in regular elections. Special elections were also held to fill vacancies. The Democratic Party increased its majority with a net gain of one seat from the Republican Party. The election cycle took place in the middle of President George H. W. Bush's term, and, as with most other midterm elections, the party not holding the presidency gained seats in Congress.
The 1978 United States Senate elections were held on November 7, in the middle of Democratic President Jimmy Carter's term. The 33 seats of Class 2 were contested in regular elections. Special elections were also held to fill vacancies.
The 1972 United States Senate elections were held on November 7, with the 33 seats of Class 2 contested in regular elections. They coincided with the landslide re-election of Republican President Richard Nixon. Despite Nixon's landslide victory, Democrats increased their majority by two seats. The Democrats picked up open seats in Kentucky and South Dakota, and defeated four incumbent senators: Gordon Allott of Colorado, J. Caleb Boggs of Delaware, Jack Miller of Iowa, and Margaret Chase Smith of Maine. The Republicans picked up open seats in New Mexico, North Carolina, and Oklahoma, and defeated one incumbent, William B. Spong Jr. of Virginia.
James Caleb Boggs was an American lawyer and local politician from Claymont in New Castle County, Delaware. A liberal Republican, he was commonly known by his middle name, Caleb, frequently shortened to Cale.
The 2008 Delaware gubernatorial election took place on November 4, 2008, coinciding with the United States presidential election. Democratic state Treasurer Jack Markell defeated Republican William Swain Lee in a landslide, succeeding incumbent Ruth Ann Minner, also a Democrat, who was prevented from running for a third term.
The 2008 United States Senate election in Delaware was held on November 4, 2008. Incumbent Senator Joe Biden, who was also the Democratic nominee for vice president in the concurrent presidential election, faced Christine O'Donnell in the general election. Biden won re-election to a seventh term with 64.69% of the vote, his best-performing result in his senatorial career, while also being elected vice president. Biden took his oath of office in the Senate chamber with the rest of his colleagues on January 3, 2009, but resigned his seat on January 15, 2009, and assumed the vice presidency five days later. Delaware Governor Ruth Ann Minner appointed Ted Kaufman, a Democrat and longtime Biden advisor, to fill the vacant seat pending a 2010 special election in which O'Donnell once again ran unsuccessfully for the seat, being defeated by Democrat Chris Coons.
The electoral history of Joe Biden, the 46th and current president of the United States, began in 1970. Biden served as the 47th vice president (2009–2017), and as a United States senator from Delaware (1973–2009). Biden is the oldest elected and serving president, the second Catholic president, after John F. Kennedy, and the first president from Delaware.
The 1972 United States Senate election in Delaware was held November 7, 1972. Incumbent Republican Senator J. Caleb Boggs ran for a third term in the United States Senate. Boggs faced off against Democrat Joe Biden, a New Castle County Councilman. Though Boggs was expected to easily win a third term, Biden narrowly defeated the incumbent on election day, even while fellow Democrat George McGovern lost Delaware by 20.4% in the concurrent presidential election. Biden's victory margin of 3,162 votes made this the closest U.S. Senate election of the year. Biden won a total of seven terms in the Senate, before being elected vice president in 2008 and in 2012 and president in 2020. At the age of 29, Biden became the youngest person to be elected senator since Rush Holt won in West Virginia in 1934 even as incumbent Republican President Richard Nixon overwhelmingly won the state for re-election on the same ballot.
The 2002 United States Senate election in Delaware was held on November 5, 2002. Incumbent Democratic U.S. Senator Joe Biden won re-election to a sixth term, defeating Raymond Clatworthy in a rematch. This is the last Senate election that Biden decreased his percentage of the votes since the previous election and the only time Biden lost Kent County in his seven elections to the Senate.
The 2010 United States Senate special election in Delaware took place on November 2, 2010, concurrently with elections to the United States Senate in other states, as well as elections to the United States House of Representatives and various state and local elections. It was a special election to fill Delaware's Class II Senate seat, then held by Democrat Ted Kaufman, an appointee. The seat had been previously held by the state's longest-serving senator, Democrat Joe Biden, who vacated it when he became Vice President of the United States in 2009.
The 1994 United States Senate election in Delaware was held November 8, 1994. Incumbent Republican U.S. Senator William V. Roth won re-election to a fifth term. William Roth is Delaware's first senator to win a fifth term. He was Delaware's longest-serving senator until Joe Biden won a sixth term in 2002. As of 2023, this was the last time the Republicans won a U.S. Senate election in Delaware.
The 1996 United States Senate election in Delaware was held on November 5, 1996. Incumbent Democratic U.S. Senator Joe Biden won re-election to a fifth term. This was the first Senate election in his career in which Biden's margin of victory decreased from the prior election.
Elections were held in Delaware on Tuesday, November 2, 2010. Primary elections were held on September 14, 2010.
The 1988 United States Senate election in Connecticut took place on November 8, 1988. Incumbent Republican U.S. Senator Lowell Weicker ran for re-election to a fourth term, but was narrowly defeated by Democrat Joe Lieberman, the Connecticut Attorney General and eventual 2000 nominee for Vice President of the United States, who would remain in office until 2013.
The 1984 United States Senate election in Delaware was held on November 6, 1984. Incumbent Democratic Senator Joe Biden won re-election to a third term, defeating Republican challenger John M. Burris.
The 1978 United States Senate election in Delaware was held on November 7, 1978. Incumbent Democratic United States Senator Joe Biden won re-election to a second term, defeating Republican challenger James H. Baxter Jr. in a landslide victory. This is the first of five elections that Biden won all counties.
The 2014 United States Senate election in Delaware was held on November 4, 2014 to elect a member of the United States Senate to represent the State of Delaware, concurrently with other elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections. This election was the fifth consecutive even-number year in which a senate election was held in Delaware after elections in 2006, 2008, 2010, and 2012.
The 2016 Delaware gubernatorial election took take place on November 8, 2016, to elect the Governor of Delaware, concurrently with the 2016 U.S. presidential election, as well as elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections.
M. Jane Brady is an American attorney and former judge. She was the Attorney General of Delaware from 1995 to 2005, the first woman to serve in that position. From 2005 to 2017, she served as a judge on the Delaware Superior Court.
The 2020 United States Senate election in Delaware was held on November 3, 2020, to elect a member of the United States Senate to represent the State of Delaware, concurrently with the 2020 U.S. presidential election, as well as other elections to the United States Senate, elections to the United States House of Representatives, and various state and local elections.
