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Cassidy loses Louisiana primary as Trump ousts GOP critic

Bill Cassidy lost Louisiana's Republican primary, turning Donald Trump's impeachment grudge into a concrete defeat and setting a June 27 runoff.

By Ramona Castellanos4 min read
Historic Gothic-style Old State Capitol in Baton Rouge, Louisiana, USA.

Senator Bill Cassidy lost Louisiana’s Republican Senate primary on Saturday, ending his bid for another term after a campaign that turned on his 2021 vote to convict Donald Trump over the Jan. 6 attack on the Capitol, Reuters reported.

The result turned a years-long loyalty test inside the Republican Party into a definitive election outcome and sent Representative Julia Letlow and state treasurer John Fleming into a June 27 runoff for the seat, AP News reported. For House and Senate Republicans who have weighed public breaks with Trump, the space to do so just narrowed further.

Cassidy’s rift with Trump defined his race from the opening day.

With 98 per cent of the vote counted, Letlow led with 45.2 per cent and Fleming had 28.3 per cent, according to Reuters. Under Louisiana’s primary system, only the top two advance to a runoff. Cassidy, 68, had represented Louisiana in Congress and the Senate for 12 years. His 2021 impeachment vote was the charge his opponents returned to again and again.

Trump moved quickly to claim the result. “His disloyalty to the man who got him elected is now a part of legend, and it’s nice to see that his political career is OVER!” the president said, according to Axios. He framed Louisiana as proof that crossing him can still carry a political cost years after the fact.

Cassidy conceded with a more restrained tone. “When you participate in democracy, sometimes it doesn’t turn out the way you want it to. But you don’t pout. You don’t whine,” he said, AP News reported. He did not dispute what had ended his campaign. Cassidy had become a test of whether a Republican senator could survive an open break with Trump in a state where the president still dominates the party.

For Republicans on Capitol Hill, the Louisiana result reads as a warning about the staying power of Trump’s base. Cassidy was a nationally known senator, not an obscure backbencher, and his political problem kept collapsing back to one vote cast after Jan. 6. If he could not outlast that history in a home-state primary, other Republicans considering a public break with Trump will take notice.

That is what gives the loss its force beyond Louisiana.

The race also showed the limits of incumbency once national grievances define a primary. Cassidy entered with seniority, statewide name recognition and a long record in office. None of it erased the argument Trump and his allies had repeated for years: Cassidy had crossed the party’s dominant figure at a defining moment. Once that argument set the terms, the contest became about whether Republican voters would forgive open dissent. They would not.

The consequence is already playing out. Congress still contains Republicans who disagree with Trump on tactics, policy or democratic norms, but Cassidy’s defeat reinforces the idea that such disagreements become dangerous when they are public and tied to a moment voters remember. Trump retains enough influence to make old ruptures politically current.

What comes next

The immediate contest now shifts to Letlow and Fleming, who will meet in the June 27 runoff for the Republican nomination, AP News reported. For Louisiana Republicans, the remaining question is which of the two can consolidate the voters who wanted the party to move on from Cassidy. For national Republicans, the anti-Cassidy mood was larger than Cassidy’s own base — a sign that the party’s internal arguments now centre on who best represents Trump-aligned politics rather than whether that alignment should dominate at all.

Neither Letlow nor Fleming now has to campaign against the weight of Cassidy’s incumbency. Instead, the runoff will play out inside the pro-Trump lane that defined the opening round. That matters in Washington. Republican lawmakers who once tried to separate criticism of Trump from opposition to the party are operating inside narrower boundaries than before, and Cassidy’s defeat will make those boundaries look tighter still.

So the result will echo beyond Louisiana. It removes a prominent example of Republican resistance from the ballot and gives Trump another concrete result to cite when arguing that breaking with him still carries a cost. The June 27 runoff will determine who advances to the general election. The primary already settled the larger question hanging over Cassidy’s candidacy.

Bill Cassidydonald trumpJohn FlemingJulia LetlowlouisianaRepublican Party
Ramona Castellanos

Ramona Castellanos

US politics correspondent covering Congress, primaries and the Trump administration. Reports from Washington.

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