Cassidy faces primary challenge as Trump’s influence tests Louisiana GOP
President Donald Trump has publicly urged Republicans to vote out Senator Bill Cassidy, citing his 2021 impeachment conviction vote and alleged obstruction of the surgeon-general nominee, as the Louisiana Republican Senate primary approaches.

US Senator Bill Cassidy is confronting a significant primary challenge in Louisiana, with President Donald Trump backing Representative Julia Letlow in a contest widely viewed as a barometer of the president’s continued hold over the Republican Party. Polls indicate that Cassidy currently trails both Letlow and State Treasurer John Fleming ahead of Thursday’s election, a race that serves as a stark test of party loyalty in a deep-red state.
The central fault line in the campaign is Cassidy’s 2021 vote to convict President Trump during his first-term impeachment proceedings. Cassidy joined seven other Republicans in voting to convict Trump of incitement of insurrection following the storming of the US Capitol, stating at the time that the Constitution was more important than any individual. While most Republican senators who voted to convict have since been ousted or retired, Cassidy has remained in office, though his standing within the party base has eroded.
Tensions escalated recently when Trump accused Cassidy of obstructing the confirmation of his nominee for surgeon-general, Casey Means. Trump described Cassidy’s actions as “intransigence and political games” and explicitly stated in a subsequent post that he hopes Republicans will vote Cassidy out of office. Cassidy has countered by attacking Letlow’s conservative credentials, highlighting her past support for education diversity initiatives, which she has since disavowed, and her attendance at the 2023 UN climate change conference.
Cassidy’s relationship with the administration has been complex, marked by both collaboration and conflict. During the confirmation hearing for Robert F Kennedy Jr as Health and Human Services Secretary, Cassidy clashed with Kennedy over vaccine scepticism, citing the tragic loss of life from vaccine-preventable diseases. Cassidy later cast the deciding vote to confirm Kennedy after receiving assurances regarding federal vaccine recommendations, although the department has since altered those recommendations.
The primary occurs against a backdrop of shifting political dynamics and legal disputes. Trump’s national approval rating has reportedly hit a record low of 34 percent, amid discontent over the US-Israel war on Iran and its economic impact. Meanwhile, the Louisiana US House of Representatives primary has been temporarily suspended by Governor Jeff Landry following a US Supreme Court decision on redistricting, a move civil rights groups are challenging in court. If no candidate secures an outright majority in the Senate race, a run-off election is scheduled for June 27.


