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Sen. Bill Cassidy failed to advance in Louisiana’s Republican primary Saturday, knocked out amid lingering fallout from his 2021 vote to convict former President Donald Trump. The contest now moves to a June 27 runoff between U.S. Rep. Julia Letlow and state Treasurer John Fleming — a result that underscores the former president’s sway within the GOP and could shape the state’s Senate representation into the fall.
Why this matters now
The outcome matters because it illustrates a continuing moment of reckoning inside the Republican Party: lawmakers who crossed Mr. Trump are facing political consequences, and those consequences are reshaping who will appear on the ballot in November. For Louisiana voters, the primary also exposed confusion around recent election-rule changes that may have altered turnout and choices on Saturday.
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Cassidy fails to reach Louisiana GOP runoff: Trump-backed Letlow and Fleming advance
Trump’s imprint on the race
Letlow moved quickly to align herself with the former president at her victory gathering, thanking him publicly as she positioned her campaign as loyal to his agenda. Mr. Trump celebrated Cassidy’s loss on social media, framing the result as payback for the senator’s impeachment conviction vote — a stance that has shadowed Cassidy since 2021.
Cassidy, who spent heavily to defend his seat, argued to supporters that his decisions were driven by principle and the Constitution rather than allegiance to any single individual. Despite the emphasis on his record and a robust advertising effort, he fell short of qualifying for the runoff.
Campaign spending and scale
Money flowed heavily into the contest, but high spending did not guarantee success for the incumbent.
| Item | Approximate amount |
|---|---|
| Cassidy — campaign ads | $9.6 million |
| Cassidy — supporting super PAC | $12.3 million |
| Letlow — campaign | $3.9 million |
| Letlow — supporting super PAC | $6 million |
| Fleming — campaign | $1.5 million |
| Runoff date | June 27 |
Changes at the ballot box created friction
Voters and party officials said a pair of recent procedural shifts complicated the primary. One was the U.S. Supreme Court’s rollback of a section of the Voting Rights Act that affects how districts are drawn; another was a state decision to postpone congressional elections while maps are redrawn. The state also adopted a new primary format that requires voters to request a partisan ballot — a change several officials and voters called confusing.
State Democrats reported hundreds of calls from residents who said they were uncertain how to cast their ballot under the new rules. Cassidy publicly criticized the new system ahead of the primary, saying it had the potential to mislead voters.
Broader implications for the GOP
The Louisiana result is one in a string of recent contests where Mr. Trump has used endorsements and social-media pressure to punish Republicans he views as disloyal and to elevate allies. That campaign of retribution has included targeted efforts against members of Congress in other states and is part of a wider push to consolidate influence within the party as it heads into midterm contests and beyond.
- Intraparty direction: Candidates perceived as aligned with Mr. Trump have gained ground, shaping the GOP’s policy focus and messaging.
- Electoral consequences: Primary upsets can alter general-election lineups and affect party unity ahead of national races.
- Voter confusion: Changes to voting procedures may depress participation or shift which voters are heard in crucial contests.
What’s next in Louisiana
With Letlow and Fleming heading to a late-June runoff, the seat will likely remain in Republican hands given Louisiana’s partisan lean. How fiercely the two contenders court Trump-aligned voters, and whether any lingering voter confusion gets resolved, will determine who competes in the fall and how the state’s Senate delegation shapes up for the remainder of the current Congress.
On the Democratic side, at least one candidate reached a runoff, while other contests remained too close to call immediately after the primary, leaving some questions about the fall ballot composition.
Longer-term, the race highlights two competing forces within the GOP: institutional incumbency backed by fundraising and the political energy surrounding Mr. Trump’s endorsements. Both will be on display in the weeks leading to the runoff and in the campaign season ahead.
