A Louisiana senator bidding for a third term lost his Republican primary on May 16, in the latest demonstration of U.S. President Donald Trump’s hold over his party.

Sen. Bill Cassidy of Louisiana faces two challengers — one endorsed by the president — in Saturday’s primary, five years after voting to convict Trump.

Louisiana voters will participate in a revamped and stripped-down state primary Saturday and decide the political fate of an embattled Republican U.S. senator targeted for defeat…