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.

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2020 United States House of Representatives election in Delaware, at-large district

← 2018 November 3, 2020 2022 →

Candidate Lisa Blunt Rochester Lee Murphy Party Democratic Republican Popular vote 281,382 196,392 Percentage 57.6% 40.2%

County results Precinct results Rochester:      40–50%      50–60%      60–70%      70–80%      80–90%      >90% Murphy:      40–50%      50–60%      60–70%      70–80%      80–90%      No data

U.S. Representative before election Lisa Blunt Rochester Democratic Elected U.S. Representative Lisa Blunt Rochester Democratic

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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.^[1]

The Republican nominee was Lee Murphy, a private citizen who worked for most of his life at Amtrak as a conductor and manager.^[2] Murphy had also worked as an actor and had appeared in Netflix's House of Cards.