2026 United States Senate election in Louisiana

For related races, see 2026 United States Senate elections.

2026 United States Senate election in Louisiana
November 3, 2026
 
Party Republican Democratic
Incumbent U.S. senator

Bill Cassidy
Republican



The 2026 United States Senate election in Louisiana will be held on November 3, 2026, to elect a member of the United States Senate to represent the state of Louisiana. A runoff election will be held on December 12, 2026 if no candidate wins a majority. Party primary elections will be held on May 16, 2026 with a runoff on June 27 if no candidate wins a majority in the primary. Incumbent Republican senator Bill Cassidy, who was re-elected in 2020, is running for re-election to a third term. Cassidy's vote to convict Donald Trump in his second impeachment trial has led to primary challenges against him.

Following the enactment of House Bill 17 in 2024, this will be the first U.S. Senate election in Louisiana to utilize party primaries instead of a single blanket primary since 2010. Louisiana has been represented in the U.S. Senate exclusively by Republicans since 2015.

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