Election 2026 Louisiana Senate

Sen. Bill Cassidy, R-La., left, speaks to supporters alongside his wife, Laura, during an election night watch party Saturday, May 16, 2026, in Baton Rouge, La.

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Trump-backed Rep. Letlow, state Treasurer Fleming advance to Louisiana Senate runoff, oust Cassidy

Trump-backed Rep. Letlow, state Treasurer Fleming advance to Louisiana Senate runoff, oust Cassidy

U.S. Rep. Julia Letlow has advanced to a runoff in Louisiana’s Republican Senate primary. She capitalized on the power of President Donald Trump’s endorsement in another attempt to purge his party of people he views as disloyal. Trump supported Letlow over incumbent Sen. Bill Cassidy, one of the few Republican senators who voted to convict him during his second impeachment trial over the attack on the U.S. Capitol on Jan. 6, 2021. Cassidy, a doctor, has also clashed with Health Secretary Robert F. Kennedy Jr. over vaccine policy, even though he provided crucial support to help Kennedy get confirmed. By receiving less than 50% of the vote, Letlow was unable to avoid a runoff.