Louisiana Senate Primary Puts Trump's Revenge Politics to the Test

Republican Senator Bill Cassidy, who voted to convict Trump during his second impeachment trial, faced a Trump-backed primary challenger in Louisiana's Senate primary on May 16. Trump-endorsed Julia Letlow advanced to a GOP runoff, while Cassidy trailed in the contest. The race represents a key test of Trump's ability to purge Republican dissenters ahead of the 2026 midterms. Louisiana also held congressional primaries, though House votes were invalidated after state officials moved that election to November to allow redistricting.