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PBS News Hour
Primary challenge to Sen. Cassidy tests Trump's grip on GOP
Louisiana primary voters could boot a sitting U.S. senator for the first time in nearly 100 years. Backing the insurgency against Sen. Bill Cassidy is President Donald Trump. The pair have been at political odds since Cassidy voted to convict Trump in his second impeachment trial more than five years ago. Liz Landers looks into the tight, three-way race.
