Trump has long had a tenuous relationship with Cassidy.

President Trump pledged to back GOP Rep. Julia Letlow if she launches a bid in the Louisiana Senate race.

The president is backing a primary challenge against the Louisiana senator, which may doom his political career.

Days after President Trump urged her to run, Representative Julia Letlow said she would challenge Mr. Cassidy, a Louisiana ...

Republican Rep. Julia Letlow has launched a run for US Senate in Louisiana, taking advantage of President Donald Trump’s ...

President Donald Trump’s endorsement Saturday night of U.S. Rep. Julia Letlow to be Louisiana’s next senator has dramatically ...

President Trump is encouraging Rep. Julia Letlow to run against Republican Louisiana Sen. Bill Cassidy in the state's primary ...

The president urged Representative Julia Letlow of Louisiana to run against Mr. Cassidy, in a move that is likely to further ...

Republican Louisiana Rep. Julia Letlow entered her state’s 2026 Senate race Tuesday to unseat GOP Sen. Bill Cassidy just days ...

Rep. Julia Letlow (R-LA) launched a widely anticipated Senate campaign on Tuesday against Sen. Bill Cassidy (R-LA) after a preemptive endorsement from President Donald Trump over the weekend. Letlow, ...

Fresh off an endorsement from President Donald Trump, Rep. Julia Letlow of Louisiana is launching a U.S. Senate bid against ...

Rep. Julia Letlow announced Tuesday morning that she is running for Senate, after earning President Donald Trump's ...