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Delaware

Delaware U.S. Senate election history

Every Delaware U.S. Senate election from 1976 to 2024: winners, parties, margins and the seats that changed hands.

Current senators

Wins by party

  • Democratic 14
  • Republican 4
D+50R+50D+25R+251976: R+12.219761978: D+16.91982: R+11.019821984: D+20.21988: R+24.119881990: D+26.81994: R+13.319941996: D+21.92000: D+11.820002002: D+17.42006: D+41.520062008: D+29.42012: D+37.520122014: D+13.62018: D+22.120182020: D+21.52024: D+17.12024
Delaware Senate races: Republican minus Democratic share, in points. Bars above the line lean Republican, below lean Democratic.
YearSeatWinnerPartyRunner-upMarginVotes
2024 Class I Lisa Blunt Rochester Democratic Eric Hansen 17.1 500,606
2020 Class II Christopher A. Coons Democratic Lauren E. Witzke 21.5 490,935
2018 Class I Thomas R. Carper Democratic Rob Arlett 22.1 362,606
2014 Class II Christopher A. Coons Democratic Kevin Wade 13.6 234,038
2012 Class I Thomas R. Carper Democratic Kevin Wade 37.5 399,606
2010 special Class II Christopher A. Coons Democratic Christine O'Donnell 16.6 307,402
2008 Class II Joe Biden Democratic Christine O'Donnell 29.4 398,134
2006 Class I Thomas R. Carper Democratic Jan Ting 41.5 242,972
2002 Class II Joe Biden Democratic Raymond J. Clatworthy 17.4 232,314
2000 flip Class I Thomas R. Carper Democratic William V. Roth Jr. 11.8 326,993
1996 Class II Joe Biden Democratic Raymond J. Clatworthy 21.9 275,591
1994 Class I William V. Roth Jr. Republican Charles Oberly 13.3 199,000
1990 Class II Joe Biden Democratic M. Jane Brady 26.9 180,157
1988 Class I William V. Roth Jr. Republican Shien Biau Woo 24.1 243,493
1984 Class II Joe Biden Democratic John Burris 20.2 245,932
1982 Class I William V. Roth Jr. Republican David N. Levinson 11.0 190,960
1978 Class II Joe Biden Democratic James H. Baxter 16.9 162,072
1976 Class I William V. Roth Jr. Republican Thomas C. Maloney 12.2 224,795

Delaware governor history · House districts · Presidential results

Questions and answers

Who won the most recent Delaware Senate election?

Lisa Blunt Rochester won in 2024 by 17.1 points.

Who are Delaware's U.S. senators?

Lisa Blunt Rochester (Democrat, term ends 2031) and Christopher A. Coons (Democrat, term ends 2027).

When did a Democrat last win a Delaware Senate race?

In 2024, when Lisa Blunt Rochester won.

When did a Republican last win a Delaware Senate race?

In 1994, when William V. Roth Jr. won.

Results: FiveThirtyEight (from 1976 for Senate, 1996 for governor). Current members: congress-legislators.