NBC News projects Louisiana GOP Senate race advances to runoff, Cassidy out

Published: May 17, 2026 3:16 AM • Updated: May 19, 2026 12:31 AM • Original source

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Republican Sen. Bill Cassidy loses his primary as Rep. Julia Letlow and state Treasurer John Fleming advance to a June 27 runoff. NBC News' Steve Kornacki breaks down the race data.