Loyalty Test: Trump’s Target CRUMBLES

Senator Bill Cassidy paid a steep political price for voting to convict President Trump in 2021, becoming the first Republican senator in nearly a decade to lose his party’s nomination for re-election.

Story Snapshot

Cassidy, one of seven Republican senators who voted to convict Trump after January 6, was projected to miss the runoff entirely in Louisiana’s GOP Senate primary.
President Trump endorsed Congresswoman Julia Letlow and called Cassidy a “sleazebag,” “disloyal,” and “bad for Louisiana” on Truth Social the morning of the primary.
Letlow and former Congressman John Fleming advanced to the runoff, with Cassidy finishing outside the top two despite winning his home base of East Baton Rouge Parish.
Cassidy defended his record by pointing to four bills Trump signed into law that he authored or helped negotiate, arguing cooperation matters more than personal loyalty.

Trump’s Endorsement Drives Cassidy Out of the Race

On primary day, Trump took to Truth Social to deliver a sharp personal attack on Cassidy, labeling him a “sleazebag” and “disloyal,” while throwing his full support behind Congresswoman Julia Letlow. The endorsement carried enormous weight in Louisiana’s closed Republican primary, where the party base has increasingly treated alignment with Trump as a baseline requirement for keeping a Senate seat. Letlow and Fleming were projected to advance to the runoff as Cassidy’s numbers fell short.

Local analyst Clancy DuBos, reviewing early returns on election night, stated flatly that “Cassidy is going to miss the runoff,” noting that the campaign failed to reach enough no-party voters who might have crossed over to support him. Cassidy ran first in East Baton Rouge, St. Tammany, and Jefferson parishes, but not by margins large enough to overcome strong performances by Letlow and Fleming in other parts of the state.

The Impeachment Vote That Cost Him Everything

Cassidy’s political troubles trace directly to February 2021, when he became one of only seven Republican senators to vote to convict Trump following the January 6 Capitol breach. That single vote made him a marked man inside the Louisiana Republican Party, which censured him shortly afterward. From that moment forward, Trump’s political machine treated his Senate seat as a target, and the 2026 primary was the culmination of five years of building opposition against him.

National political analysts, including National Broadcasting Company (NBC) chief data analyst Steve Kornacki, noted during live primary coverage that Cassidy faced significant backlash within the Republican base specifically because of that conviction vote. The Louisiana primary structure — a closed contest — meant that the electorate skewing toward core Republican voters made Cassidy’s path even narrower. Some Democratic-leaning voters reportedly crossed over to support him, but it was not enough to compensate for the erosion of his base.

Cassidy Defends His Record, Argues Cooperation Over Loyalty

Cassidy did not go quietly. In remarks before and after the primary, he pushed back on the loyalty narrative by pointing to concrete legislative results. He noted that Trump signed into law four bills he authored or helped negotiate into larger legislation, contrasting his record with opponents who lacked comparable signed legislation. His argument was straightforward: effective governance, not personal affinity, should define a Republican senator’s value to the state and the country.

Louisiana Republican Sen. Bill Cassidy became the first GOP senator to lose renomination in close to a decade, a remarkable downfall that shows again how Trump dominates the party.

Here are our takeaways from primary night in Louisiana: pic.twitter.com/vJjRHLmgKq

— Smithkent William (@SmithkentWkgm) May 17, 2026

Cassidy acknowledged the political reality with characteristic bluntness, saying, “I’m not claiming the president loves me… you can work with people even if you don’t love each other if you got a common goal.” It was a reasonable argument, and one that might have resonated in a different political environment. But in a closed Republican primary dominated by voters who view the 2021 conviction vote as an act of betrayal, the legislative scorecard was not enough to save a twelve-year Senate career. Cassidy’s defeat sends an unmistakable message to any Republican officeholder weighing a break with Trump: the base remembers, and it votes.