The 2020 United States House of Representatives election in Delaware was held on November 3, 2020, to elect the U.S. representative from Delaware's at-large congressional district. The election coincided with the 2020 U.S. presidential election, as well as other elections to the House of Representatives, elections to the United States Senate and various state and local elections. The Democratic and Republican primaries was held on September 15, 2020.

Incumbent Democratic Congresswoman Lisa Blunt Rochester ran for re-election to a third term. She was re-elected with 64.5% of the vote in 2018.

The Republican nominee was Lee Murphy, a private citizen who worked for most of his life at Amtrak as a conductor and manager. Murphy had also worked as an actor and had appeared in Netflix's House of Cards.

Democratic primary

Candidates

Nominee Lisa Blunt Rochester, incumbent U.S. representative

Declined Scott Walker, Republican nominee for Delaware's at-large congressional district in 2018 (ran for Governor as a Republican)

Endorsements

Republican primary

Candidates

Nominee Lee Murphy, actor and candidate for Delaware's at-large congressional district in 2018

Eliminated in primary Matthew Morris, sales consultant

Results

Libertarian primary

Candidates

Nominee David L. Rogers

Independent Party of Delaware

Declared Catherine S. Purcell, college student and pro-Trump activist

General election

Debate + 2020 Delaware U.S. House of Representatives debate Date Host Moderator Link Democratic Republican Libertarian IndependentKey: Participant  Absent  Not invited  Invited Withdrawn Lisa Blunt Rochester Lee Murphy David Rogers Catherine Purcell1 Oct. 14, 2020 University of Delaware Ralph Begleiter

Predictions SourceRankingAs of The Cook Political Report November 2, 2020 Inside Elections October 28, 2020 Sabato's Crystal BallNovember 2, 2020PoliticoNovember 2, 2020Daily KosNovember 2, 2020RCPNovember 2, 2020

Polling Poll source Date(s)administered Samplesize Marginof error Lisa BluntRochester (D) LeeMurphy (R) CatherinePurcell (DI) DavidRogers (L) Other/UndecidedUniversity of DelawareSeptember 21–27, 2020847 (LV) –51%29%5%3%13%

Results

CountyLisa Blunt RochesterDemocraticLee MurphyRepublicanCatherine PurcellDelaware IndependentDavid RogersLibertarianMarginTotal votes#%#%#%#%#%New Castle184,33766.3187,58131.503,8311.382,2550.8196,79634.82278,004Kent42,98450.7939,58646.781,2841.527680.913,3984.0184,622Sussex54,06143.0369,22555.101,5671.257910.63−15,164−12.07125,644 Totals281,38257.63196,39240.226,6821.373,8140.7884,99017.41488,270

Notes

References

External links

(state affiliate of the U.S. League of Women Voters)

Official campaign websites Lisa Blunt Rochester (D) for Congress Lee Murphy (R) for Congress