President Donald Trump has endorsed Representative Julia Letlow in a potential Republican primary challenge against incumbent Senator Bill Cassidy in Louisiana. CNN pollster Harry Enten highlighted Trump's strong track record in primary endorsements, dubbing him the 'kingmaker in chief.' Letlow, who has not yet officially launched a campaign, is considering a run for the Senate.
On January 17, 2026, President Donald Trump issued a strong endorsement for Rep. Julia Letlow (R-LA) via Truth Social, positioning her as a challenger to Sen. Bill Cassidy (R-LA) in the upcoming Republican Senate primary. Trump praised Letlow extensively, stating, "I know Julia well, have seen her tested at the highest and most difficult levels, and she is a TOTAL WINNER! A Proud Mother of two children, Julia is a wonderful person, has ALWAYS delivered for Louisiana, and would continue doing so in the United States Senate."
He outlined her potential priorities, adding, "As your next Senator, Julia will work tirelessly to Grow our Economy, Cut Taxes and Regulations, Support our Amazing Farmers and Fishermen, Champion Louisiana Oil & Gas, Unleash American Energy DOMINANCE, Promote MADE IN THE U.S.A., Keep our Border SECURE, Stop Migrant Crime, Ensure LAW AND ORDER, Strengthen our Military/Veterans, and Protect our always under siege Second Amendment."
The endorsement drew attention from CNN chief data analyst Harry Enten, who discussed it on air with anchor John Berman on January 19, 2026. Enten described Trump as the "kingmaker in Republican primaries," citing his endorsement success rates: 98% in 2020, 95% in 2022, and 96% in 2024 for congressional and gubernatorial races. He noted Trump's approval rating among Republicans at around 90%, emphasizing the stakes for Cassidy: "When Trump goes against you, you go — to quote the great movie ‘Good Burger’ — into the grinder!"
Letlow has not formally announced her candidacy but is reportedly weighing a bid. This move underscores Trump's continued influence within the GOP, particularly in primary contests, as he shapes the party's direction ahead of future elections.
