Sen. Bill Cassidy’s political career is at stake on Saturday as Louisiana voters weigh in on the Republican for the first ...

Louisiana Republican Sen. Bill Cassidy wanted his reelection campaign to be about the “present and the future.” President ...

The Louisiana lawmaker had angered the president, who once again showed his ability to make or break Republicans’ careers.

Sen. Bill Cassidy’s primary loss Saturday brings an end to a two-decade career in public office that was ultimately defined by tensions with President Donald Trump ...

Former Sen. Mitt Romney (R-Utah) on Sunday described Sen. Bill Cassidy’s (R-La.) defeat in the Louisiana Republican primary on Saturday as a “loss for the country.” Cassidy lost ...

Sen. Bill Cassidy, a Louisiana Republican, has lost his bid for a third term in a remarkable defeat, after two primary ...

Sen. Lindsey Graham said Sunday on NBC that Sen. Bill Cassidy lost his Louisiana primary because he "tried to destroy" ...

Sen. Lindsey Graham says Bill Cassidy's primary defeat shows there is no room in the Republican Party for lawmakers who try to undermine Donald Trump.

Sen. Bill Cassidy is one of few remaining Republican senators who voted to convict President Trump after the Jan. 6 attack on the Capitol. Trump endorsed his opponent, Rep. Julia Letlow.

U.S. Rep. Julia Letlow and state Treasurer John Fleming have advanced to a runoff in Louisiana’s Republican Senate primary, defeating Sen. Bill Cassidy amid President Donald Trump’s campaign to oust ...

Rep. Julia Letlow, who had Trump’s endorsement, advanced to a primary runoff against state Treasurer John Fleming, NBC News ...