2024 United States Senate election in Delaware

The 2024 United States Senate election in Delaware will be held on November 5, 2024, to elect a member of the United States Senate to represent the state of Delaware. Primary elections will take place on September 3, 2024. Incumbent Democrat Tom Carper, who was re-elected with 60.0% of the vote in 2018, has announced he will not seek re-election to a fifth term in office.

On May 22, 2023, Carper announced his retirement, saying "if there was ever an opportune time to step aside and pass the torch to the next generation, it's coming, and it will be here on January 3, 2025."

As Lisa Blunt Rochester, a Democrat; Eric Hansen, a Republican; and Michael Katz, a Delaware Independent were the only qualified candidates for their respective parties, the primary was cancelled.

This will be the first open race for this seat since 1970. The last time Republicans won a U.S. Senate race in Delaware was in 1994.

Nominee

 * Lisa Blunt Rochester, U.S. representative from DE's at-large congressional district

Declined

 * John Carney, Governor of Delaware (2017–present) and former U.S. Representative from Delaware's at-large congressional district (2011–2017) (running for Mayor of Wilmington)
 * Tom Carper, incumbent U.S. Senator (endorsed Blunt Rochester) 
 * Colleen Davis, Delaware State Treasurer (ran for U.S. House)
 * Kerri Evelyn Harris, state representative and candidate for U.S. Senate in 2018

Nominee

 * Eric Hansen, business manager

Nominee

 * Michael Katz, former Democratic state senator (2009–2013)