Delaware Senate
Tue, Nov 3 · Seat held by Christopher A. Coons Democratic since Nov 2010
No published poll names both candidates.Last result · 2020 general: Christopher A. Coons (D) 59.4, Lauren Witzke (R) 37.9, Mark W. Turley (O) 1.6
Side by side
Left column: CoonsRight column: Katz
- Total receipts, 2025-2026 cycle, through Oct 14
- $5.0M
- $190K
- Cash on hand
- $5.0M
- $16K
- Donor-based spectrum
- LiberalCentristConservativeCoonsNo published score for Katz
- Races
- Won 3 of 3
- None listed
- Years since first win
- 16
- Not available
- Age on Election Day
- 63
- Not available
Money: FEC bulk data, through Oct 14. One or more are matched to the FEC by name, party and seat, so a total could belong to someone else.
How these are counted
Total receipts line of each candidate’s principal campaign committee, 2025-2026 cycle. Other sites may show career, six-year or all-committee totals, which differ. Coons: $4,956,015 received, $5,031,711 cash on hand. Katz: $190,416 received, $16,085 cash on hand. The spectrum is a published research score, not our rating. How this works. Wins and losses count the races in our results files, the same as each profile.
More about this race
Candidates on the ballot
- Christopher A. CoonsIncumbentDemocratic
- Michael "Dr. Mike" KatzRepublican
Source: elections.delaware.gov, dated Oct 28
Seat on the ballot, shift from 2014 to 2020: 7.9 points toward Democrats (Democratic by 13.6 in 2014, Democratic by 21.5 in 2020).
Vote in Delaware
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History (18 elections for this seat)
- Votes for listed candidates
- 500,606
- Election day
- November 5, 2024
US Senate, Delaware, 2024, every candidate Candidate Party Votes and share Share DemocraticLisa Blunt RochesterWon Democratic 283,29856.6% RepublicanEric Hansen Republican 197,75339.5% OtherMichael "Dr. Mike" Katz Other 19,5553.9% - Votes for listed candidates
- 490,935
- Election day
- November 3, 2020
US Senate, Delaware, 2020, every candidate Candidate Party Votes and share Share DemocraticChristopher A. CoonsWon Democratic 291,80459.4% RepublicanLauren Witzke Republican 186,05437.9% OtherMark W. Turley Other 7,8331.6% LibertarianNadine M. Frost Libertarian 5,2441.1% - Votes for listed candidates
- 362,592
- Election day
- November 6, 2018
US Senate, Delaware, 2018, every candidate Candidate Party Votes and share Share DemocraticThomas R. CarperWon Democratic 217,38560.0% RepublicanRobert B Arlett Republican 137,12737.8% GreenDemitri G Theodoropoulos Green 4,1701.2% LibertarianNadine M. Frost Libertarian 3,9101.1% - Votes for listed candidates
- 234,038
- Election day
- November 4, 2014
US Senate, Delaware, 2014, every candidate Candidate Party Votes and share Share DemocraticChristopher A. CoonsWon Democratic 130,65555.8% RepublicanKevin Wade Republican 98,82342.2% GreenAndrew Groff Green 4,5601.9% - Votes for listed candidates
- 399,606
- Election day
- November 6, 2012
US Senate, Delaware, 2012, every candidate Candidate Party Votes and share Share DemocraticThomas R. CarperWon Democratic 265,41566.4% RepublicanKevin Wade Republican 115,70029.0% IndependentAlexander Pires Independent 15,3003.8% GreenAndrew Richard Groff Green 3,1910.8% - Votes for listed candidates
- 307,402
- Election day
- not on file
- Type
- Special election
US Senate, Delaware, 2010, every candidate Candidate Party Votes and share Share DemocraticChristopher A. CoonsWon Democratic 174,01256.6% RepublicanChristine O'Donnell Republican 123,05340.0% OtherGlenn A. Miller Other 8,2012.7% LibertarianJames W. Rash Libertarian 2,1010.7% Scattered write-ins Write-in 350.0% - Votes for listed candidates
- 398,134
- Election day
- November 4, 2008
US Senate, Delaware, 2008, every candidate Candidate Party Votes and share Share DemocraticJoseph R. Biden Jr.Won Democratic 257,53964.7% RepublicanChristine O'Donnell Republican 140,59535.3% - Votes for listed candidates
- 242,972
- Election day
- November 7, 2006
US Senate, Delaware, 2006, every candidate Candidate Party Votes and share Share DemocraticThomas R. CarperWon Democratic 170,56770.2% RepublicanJan Ting Republican 69,73428.7% LibertarianWilliam E. Morris Libertarian 2,6711.1% - Votes for listed candidates
- 232,314
- Election day
- November 5, 2002
US Senate, Delaware, 2002, every candidate Candidate Party Votes and share Share DemocraticJoseph R. Biden Jr.Won Democratic 135,25358.2% RepublicanRaymond J. Clatworthy Republican 94,79340.8% OtherMaurice Barros Other 9960.4% LibertarianRaymond T. Buranello Libertarian 9220.4% OtherRobert E. Mattson Other 3500.2% - Votes for listed candidates
- 326,993
- Election day
- November 7, 2000
US Senate, Delaware, 2000, every candidate Candidate Party Votes and share Share DemocraticThomas R. CarperWon Democratic 181,56655.5% RepublicanWilliam V. Roth, Jr. Republican 142,89143.7% LibertarianJ. Burke Morrison Libertarian 1,1030.3% OtherMark E. Dankof Other 1,0440.3% OtherRobert Mattson Other 3890.1% - Votes for listed candidates
- 275,591
- Election day
- November 5, 1996
US Senate, Delaware, 1996, every candidate Candidate Party Votes and share Share DemocraticJoseph R. Biden Jr.Won Democratic 165,46560.0% RepublicanRaymond J. Clatworthy Republican 105,08838.1% LibertarianMark Jones Libertarian 3,3401.2% OtherJacqueline Kossoff Other 1,6980.6% - Votes for listed candidates
- 199,000
- Election day
- November 8, 1994
US Senate, Delaware, 1994, every candidate Candidate Party Votes and share Share RepublicanWilliam V. Roth, Jr.Won Republican 111,07455.8% DemocraticCharles M. Oberly Democratic 84,54042.5% LibertarianJohn C. Dierickx Libertarian 3,3861.7% - Votes for listed candidates
- 180,157
- Election day
- November 6, 1990
US Senate, Delaware, 1990, every candidate Candidate Party Votes and share Share DemocraticJoseph R. Biden Jr.Won Democratic 112,91862.7% RepublicanM. Jane Brady Republican 64,55435.8% LibertarianLee Rosenbaum Libertarian 2,6801.5% Scattered write-ins Write-in 50.0% - Votes for listed candidates
- 243,493
- Election day
- November 8, 1988
US Senate, Delaware, 1988, every candidate Candidate Party Votes and share Share RepublicanWilliam V. Roth, Jr.Won Republican 151,11562.1% DemocraticS. B. Woo Democratic 92,37837.9% - Votes for listed candidates
- 245,932
- Election day
- November 6, 1984
US Senate, Delaware, 1984, every candidate Candidate Party Votes and share Share DemocraticJoseph R. Biden Jr.Won Democratic 147,83160.1% RepublicanJohn M. Burris Republican 98,10139.9% - Votes for listed candidates
- 190,960
- Election day
- November 2, 1982
US Senate, Delaware, 1982, every candidate Candidate Party Votes and share Share RepublicanWilliam V. Roth, Jr.Won Republican 105,35755.2% DemocraticDavid N. Levinson Democratic 84,41344.2% LibertarianLawrence D. Sullivan Libertarian 6530.3% OtherCharles A. Baker Other 5370.3% - Votes for listed candidates
- 162,072
- Election day
- November 7, 1978
US Senate, Delaware, 1978, every candidate Candidate Party Votes and share Share DemocraticJoseph R. Biden Jr.Won Democratic 93,93058.0% RepublicanJames H. Baxter Jr. Republican 66,47941.0% OtherDonald G. Gies Other 1,6631.0% - Votes for listed candidates
- 224,795
- Election day
- November 2, 1976
US Senate, Delaware, 1976, every candidate Candidate Party Votes and share Share RepublicanWilliam V. Roth, Jr.Won Republican 125,45455.8% DemocraticThomas C. Maloney Democratic 98,04243.6% OtherDonald G. Gies Other 6460.3% IndependentJoseph F. McInerney Independent 4370.2% OtherJohn A. Massimilla Other 2160.1%
1976 to 2024: MIT Election Data and Science Lab, U.S. Senate statewide 1976-2024, retrieved Oct 28, 2026. Compiled by MIT Election Data and Science Lab (MEDSL) from official returns; not an official source
Download and cite
Cite this page
Election Wrld. (2026). US Senate in Delaware, election results. https://www.electionwrld.com/de/us-senate. Retrieved October 31, 2026.
Sources
Sources: U.S. Senate: senators contact information XML (class per senator) (US government work, public domain), retrieved Oct 28, 2026; MIT Election Data and Science Lab, U.S. Senate statewide 1976-2024 (CC0 1.0), retrieved Oct 28, 2026, compiled by MIT Election Data and Science Lab (MEDSL) from official returns, not an official source; unitedstates/congress-legislators (current) (CC0-1.0), retrieved Oct 28, 2026, compiled by the @unitedstates project volunteers (rosters from official congressional sources) from official returns, not an official source.
DataState data (JSON)Sources: MIT Election Data and Science Lab, U.S. Senate statewide 1976-2024, FEC, DIME (ODC-BY), Portraits: unitedstates/images (public domain)Data as of Oct 28, 2026