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

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

Former Sen. Mitt Romney calls Bill Cassidy's Louisiana Republican primary defeat a loss for the country as Trump revels in ...

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

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

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

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.

Senator Bill Cassidy is projected to finish third in Louisiana’s GOP primary despite months of efforts to repair ties with Trump.

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