Sen. Bill Cassidy of Louisiana is one of the few Republican senators who voted to convict former President Donald Trump after the Jan. 6, 2021, attack and is the only one from that group still running for reelection. His campaign for a third term has become a barometer for how much influence Trump retains inside the GOP and whether a Republican who breaks with the party leader can hold on in a polarized moment.
Cassidy faces two challengers in the upcoming primary: Congresswoman Julia Letlow, who has Trump’s endorsement, and former Rep. John Fleming, who served in the Trump administration. Louisiana’s primary system sends the top two vote-getters to a runoff if no candidate clears 50 percent, so the contest is likely to play out over two rounds.
Across the state, reactions to Cassidy’s 2021 vote range from anger to admiration. At a crawfish festival in Breaux Bridge, retired deputy sheriff Kevin Dupree calls the decision a betrayal and doubts Cassidy’s political future. Nearby, St. Martin Parish GOP chair Kelby Daigle, who supports Cassidy, says the senator did the right thing even if he hasn’t always explained his reasoning well to voters. Daigle warns that conservatism should be about ideas rather than personality cults.
Trump’s endorsement has clear weight among many Louisiana Republicans. Letlow — who won a 2021 special House election after her husband, Luke Letlow, died of COVID — leans into Trump’s agenda and stresses loyalty to voters. She has pushed cultural and education initiatives, including a parents bill of rights-style proposal and efforts focused on children and schools, and she sits on the powerful appropriations committee.
Letlow’s campaign emphasizes that she will follow the president and the base in contrast to Cassidy’s independence. Cassidy’s team has tried to undercut her by portraying her as soft on campus diversity initiatives from her past career in higher education, a claim she disputes and says mischaracterizes her record.
Cassidy, a physician by training and chair of the Senate health committee, is running on a record of bipartisan accomplishments and constituent service. He points to work that steered federal dollars to flood recovery projects and to his role negotiating provisions in the Bipartisan Infrastructure Law. He also highlights bills he has authored or helped pass in recent months, including measures tied to lower drug costs and efforts to curb fentanyl trafficking.
On the campaign trail he rarely revisits the impeachment vote. Instead he asks voters to consider his record of delivering for Louisiana and to focus on present and future challenges. Cassidy frames his vote as a decision made on the facts at hand and consistent with his background as a physician: weigh evidence and live with the consequence.
Cassidy is also reaching beyond the Republican base. He has directly urged Democrats who might support him to change their registration and vote in the GOP primary, a strategy complicated this year by recent efforts to close the historically open primary system. Republican Gov. Jeff Landry pushed to end the open primary, which prevents registered Democrats from requesting a Republican ballot and may limit Cassidy’s crossover support.
Some voters who oppose Cassidy still care about practical issues. Will Coenen, a voter who has supported Trump, says the senator’s Jan. 6 vote is not his primary concern; he worries more about national security and policy. Other voters, like Debbie Spinks, view Cassidy’s recent alignment with certain Trump-backed bills as opportunistic and tied to the campaign cycle, not genuine.
The race illustrates the squeeze experienced by Republicans who do not fully embrace Trump. Local figures say Cassidy is trying to be both an independent-minded lawmaker and an ally to Trump on policy — a balancing act that may alienate both wings. Former Lt. Gov. Jay Dardenne says Cassidy risks pleasing neither the pro-Trump insurgents nor the anti-Trump conservatives who value independence.
If Cassidy loses, it would remove one of the few Republican senators willing to break with Trump on occasion, at a time when bipartisan dealmakers in Congress have grown rarer. Of the seven GOP senators who voted to convict Trump, most retired rather than face voters; Maine’s Susan Collins and Alaska’s Lisa Murkowski have faced different paths to survival. Murkowski has been a vocal supporter of Cassidy continuing to stand by his convictions and warned that Trump endorsements carry substantial influence.
Analysts caution that Louisiana is not necessarily a national bellwether. The state’s mix of cultural and racial groups gives it distinct political dynamics. Still, a defeat for Cassidy would underscore how potent Trump’s endorsement remains in Republican primaries and how risky it is for GOP incumbents to break with him.
For Cassidy, the election will test whether voters reward his record of constituent services and bipartisan negotiation or whether loyalty to Trump and a sharper MAGA message will carry the day. For the party, the result will signal how far the GOP will permit dissent from Trump-era loyalties and whether an independent conservative voice can still survive in today’s Senate.