The 2026 United States Senate election in Delaware will be held on November 3, 2026, to elect a member of the United States Senate to represent the state of Delaware. Two-term Democrat Chris Coons was re-elected in 2020 with 59.4% of the vote, and has signalled that he will run for re-election. The primary elections will take place on September 15, 2026. Delaware has been represented in the U.S. Senate exclusively by Democrats since 2001, and Republicans have not won a U.S. Senate race there since 1994.