The Louisiana U.S. Senate Primary Election on November 3, 2026, is a federal primary election to nominate candidates for the United States Senate seat currently held by Senator Bill Cassidy. Louisiana uses a jungle primary system where all candidates, regardless of party, appear on the same ballot, and if no candidate receives over 50% of the vote, a runoff is held between the top two finishers.
The Louisiana U.S. Senate Primary Election on November 3, 2026, is a federal primary election to nominate candidates for the United States Senate seat currently held by Senator Bill Cassidy. Louisiana uses a jungle primary system where all candidates, regardless of party, appear on the same ballot, and if no candidate receives over 50% of the vote, a runoff is held between the top two finishers.
To vote in Louisiana, residents must register by October 6, 2026, either online through the Louisiana Secretary of State's voter portal, by mail, or in person at a registrar of voters office. On Election Day or during early voting from October 25 to November 1, 2026, voters must present a valid photo ID such as a Louisiana driver's license, U.S. passport, or military ID; voters without ID may sign an affidavit and cast a provisional ballot.