The senator lost his primary in Louisiana Saturday night, five years after voting to convict Trump on impeachment charges ...

Incumbent Sen. Bill Cassidy lost the GOP Senate primary in Louisiana to a Trump-backed candidate after voting against Trump ...

Rep. Julia Letlow will compete in a Republican Senate primary runoff in Louisiana, NBC News projects.

The Louisiana lawmaker finished third to Julia Letlow and John Fleming after angering the president.

U.S. Rep. Julia Letlow and state Treasurer John Fleming have advanced to a runoff in Louisiana’s Republican Senate primary, ...

Rep. Julia Letlow became a congresswoman after replacing her late husband, Luke.

Sen. Bill Cassidy was decisively defeated in Louisiana’s Republican primary Saturday, failing to overcome backlash from GOP ...

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

Donald Trump backed a challenger to unseat Bill Cassidy, seen as revenge for Cassidy's vote in the second Trump impeachment.

Republican Sen. Bill Cassidy was ousted in Louisiana's primary elections this weekend after facing an opponent backed by ...

President Donald Trump blasted Rep. Thomas Massie (R-KY) in a Truth Social post after Sen. Bill Cassidy (R-LA) suffered a ...