Coverage dated January 17, 2026 to January 19, 2026

Letlow launches primary challenge to Cassidy with Trump’s backing

Headline from Roll Call, on the newest of 2 developments

With President Donald Trump's endorsement, Louisiana Rep. Julia Letlow is challenging Sen. Bill Cassidy in the Republican primary.

Roll Call's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

Earlier updates in this story

Developments in this update

2 dated developments, oldest first, newest marked. Each is named by one outlet's own headline; open its reports to see every outlet that covered it.

Jan 18, 2026
Trump endorses potential Cassidy challenger in Senate race
Headline from Washington Examiner ·
Jan 20, 2026Newest
Letlow launches primary challenge to Cassidy with Trump’s backing
Headline from Roll Call ·

Read the reports

Reports & sources

15 articles, oldest first.

Breitbart News
'Run, Julia, Run!': Trump Urges 'Total Winner' Letlow to Primary Cassidy (opens Breitbart News)
Published Jan 17, 2026
Breitbart News's feed description
Rep. Julia Letlow (R-LA) secured President Trump's endorsement on Saturday, a move that could see her primary Sen. Bill Cassidy (R-LA).
CBS News
Trump endorses possible primary challenger to Sen. Bill Cassidy in Louisiana (opens CBS News)
Published Jan 17, 2026
CBS News's feed description
President Trump pledged to back GOP Rep. Julia Letlow if she launches a bid in the Louisiana Senate race.
Washington Examiner
Trump endorses potential Cassidy challenger in Senate race (opens Washington Examiner)
Published Jan 17, 2026
Washington Examiner's feed description
Trump praised Letlow on Saturday night, calling her a "Great Star" and encouraging the second-term congresswoman to enter the Senate race.
Just the News
Trump urges Louisiana Rep. Julia Letlow to run for Senate against incumbent Bill Cassidy (opens Just the News)
Published Jan 17, 2026
Just the News's feed description
Cassidy, a Republican, has been a target of criticism from Trump after he voted to convict Trump during his second impeachment trial.
NBC News
Trump encourages Rep. Julia Letlow to primary Sen. Bill Cassidy (opens NBC News)
Published Jan 17, 2026
NBC News's feed description
President Donald Trump encouraged Rep.
Breitbart News
Trump-Endorsed Julia Letlow Announces Senate Run Against Bill Cassidy (opens Breitbart News)
Published Jan 19, 2026
Breitbart News's feed description
Rep. Julia Letlow (R-LA) announced her bid for U.S. Senate, challenging Sen. Bill Cassidy (R-LA) after President Donald Trump backed her.
Roll Call
Letlow launches primary challenge to Cassidy with Trump’s backing (opens Roll Call)
Published Jan 19, 2026
Roll Call's feed description
With President Donald Trump's endorsement, Louisiana Rep. Julia Letlow is challenging Sen. Bill Cassidy in the Republican primary.
The Guardian
Julia Letlow launches Trump-backed Senate primary bid against Bill Cassidy (opens The Guardian)
Published Jan 19, 2026
The Guardian's feed description
Louisiana congresswoman is challenging Cassidy, who voted to convict the US president after 2021 Capitol attack
New York Post
Rep. Julia Letlow challenges Sen. Bill Cassidy for Senate in wake of Trump endorsement (opens New York Post)
Published Jan 19, 2026
New York Post's feed description
Rep. Julia Letlow (R-La.) is jumping into the race to challenge Sen. Bill Cassidy (R-La.) in the wake of President Trump's shocking endorsement of her over the weekend.
NBC News
Rep. Julia Letlow launches Louisiana Senate primary bid against Bill Cassidy (opens NBC News)
Published Jan 19, 2026
NBC News's feed description
Rep. Julia Letlow announced Tuesday morning that she is running for Senate, after earning President Donald Trump's endorsement over the weekend for a Republican primary challenge against Sen.
MyNorthwest
After Trump endorsement, Rep. Julia Letlow launches primary against Sen. Bill Cassidy in Louisiana (opens MyNorthwest)
Published Jan 19, 2026
MyNorthwest's feed description
Fresh off an endorsement from President Donald Trump, Rep. Julia Letlow of Louisiana is launching a U.S. Senate bid against fellow Republican and second-term
Fox News
Trump endorsement rocks Louisiana Senate race as Letlow poised to jump in (opens Fox News)
Published Jan 19, 2026
Fox News's feed description
Trump endorses Rep. Julia Letlow over incumbent Sen. Bill Cassidy in Louisiana GOP Senate primary, dealing severe setback to the physician seeking third term in solidly red state.
CNN
With Trump’s backing, Rep. Julia Letlow launches a primary challenge against Louisiana Sen. Bill Cassidy (opens CNN)
Published Jan 19, 2026
CNN's feed description
Republican Rep. Julia Letlow has launched a run for US Senate in Louisiana, taking advantage of President Donald Trump’s endorsement to launch a primary battle against incumbent GOP Sen. Bill Cassidy, a source familiar with the matter said.
CBS News
GOP Rep. Julia Letlow jumps into Louisiana Senate race after Trump backs her over Cassidy (opens CBS News)
Published Jan 19, 2026
CBS News's feed description
GOP Rep. Julia Letlow is jumping into the Louisiana Senate race after President Trump encouraged her to challenge Sen. Bill Cassidy in the state's primary.
Washington Examiner
Julia Letlow, endorsed by Trump, launches challenge to Bill Cassidy (opens Washington Examiner)
Published Jan 19, 2026
Washington Examiner's feed description
Notably, Sen. Bill Cassidy was at the breakfast in Baton Rouge where Rep. Julia Letlow announced her campaign.