Sen. Bill Cassidy helps advance Iran war powers bill after primary loss
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Sen. Bill Cassidy voted to advance the Iran war powers resolution on Tuesday May 19 2026 becoming the fourth Republican to support limiting President Trump's military actions. The Senate advanced the measure 50-47 after Cassidy's switch from prior opposition. Cassidy said the administration owes Congress more details on the path forward following the end of February strikes on Iran. The vote occurred days after Cassidy lost his Louisiana primary to Trump-endorsed candidates.