Rep. Julia Letlow has secured the Louisiana GOP Senate nomination, overcoming state Treasurer John Fleming in a heated runoff that became a test of MAGA credentials. Her victory was bolstered by an endorsement from President Donald Trump.
Letlow is poised to replace Sen. Bill Cassidy, who lost favor with MAGA supporters after his impeachment vote against Trump and finished third in the initial voting round in May. His failure to advance to the runoff is a rare instance of a Senate incumbent losing in the primary.
Letlow capitalized on her lead from the May primary, defeating Fleming, who was financially self-supported and emphasized his conservative credentials while aligning closely with Trump. Her campaign also benefited from endorsements by Gov. Jeff Landry and other key Louisiana Republicans, including House Majority Leader Steve Scalise.
With Louisiana’s strong Republican leaning, Letlow is expected to secure the Senate seat in the upcoming November election.
Landry was a prominent advocate for Letlow, dedicating his team to her campaign and urging donors to contribute. Her potential Senate victory would provide Landry with a Washington ally and strengthen his position against possible challengers in his next election race.
A consistent Republican voice in the House, Letlow also garnered backing from Louisiana’s business community and demonstrated robust fundraising capabilities.
This win adds to Trump’s successful endorsement record this primary season, despite some notable exceptions like Rick Jackson’s victory in Georgia and Zach Lahn’s in Iowa.
Letlow faced criticism from opponents who questioned her conservative credentials, with Fleming and Cassidy targeting her past support for diversity initiatives during a 2020 interview for a university position. She has since distanced herself from those views.
Letlow made history as the first Republican woman to represent Louisiana in the House after winning a special election in March 2021, following the death of her husband from Covid in December 2020. She entered the Senate race to challenge Cassidy with Trump’s backing.
Fleming, a House Freedom Caucus founder, held various roles in the Trump administration’s first term and campaigned as a Trump ally, although he did not receive the president’s endorsement.

