Cassidy's loss does not bode well for other incumbents, like Rep. Thomas Massie, who have earned themselves a challenge from Trump-backed candidates.

President Donald Trump has long been angry at Louisiana Sen. Bill Cassidy, who voted to convict him during his second impeachment and has held up key nominations for health posts…

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…

Sen. Bill Cassidy (R-LA) voted to convict President Donald Trump in his 2021 impeachment trial after the Jan. 6 Capitol riot.

Rep. Thomas Massie is in the political fight of his life as the most outspoken congressional Republican against the president.