Sen. Bill Cassidy faces a primary contest on May 16 against Rep. Julia Letlow, endorsed by President Trump, and state treasurer John Fleming, with some polls showing Cassidy trailing both rivals, according to STAT News. Cassidy, 68, chairs the Senate committee overseeing health policy but has struggled to consolidate Republican support after casting a vote against Trump — a tension STAT sources describe as leaving him at odds with both the MAGA wing of his party and the health care establishment he once led.