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Sen. Bill Cassidy's defeat shows price of dissent in Trump's Republican Party

Cassidy’s primary loss ends his career in public office after years of tension with Trump over his impeachment vote.

Sen. Bill Cassidy's defeat shows price of dissent in Trump's Republican Party
Image · NBC Bay Area

SOURCE CHECK

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Host credibilityNBC Bay AreaNOT RATED
This article1 analysis · Oct 6, 2026

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Republished from NBC News, with credit to the original publisher.

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217 stories · 85–86 · updated Oct 7, 2026

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NBC Bay Areavia NBC News
May 17, 2026
tl;dr

Bill Cassidy lost Louisiana’s Republican Senate primary, ending his two-decade career in public office. The article presents the result as a consequence of his break with Donald Trump over Trump’s 2021 impeachment trial.

Community verdict

VOTING CLOSED
How does this story look for
Bill Cassidy R · LA · SEN
NOT RATEDCLOSED

No good or bad look here

This story reports what happened without casting Cassidy in a good or bad light, so readers don’t rate it and it doesn’t count toward Cassidy’s record.

● INFORMATIONAL

People in this story

SWIPE →
Bill Cassidy
R · LA · SEN

Louisiana senator who lost the Republican primary

PRIMARY SUBJECT
Donald Trump
R · President of the United States

President whose conflict with Cassidy and influence in the primary are central to the account

Trump's version of this story ↗
Susan M. Collins
R · ME · SEN

Maine senator who also voted to convict Trump

Lisa Murkowski
R · AK · SEN

Alaska senator who also voted to convict Trump

Robert F. Kennedy Jr.
R · Secretary of Health and Human Services

Health and Human Services secretary

California representative who voted to impeach Trump

Julia Letlow
R · LA-5

Louisiana representative and Trump-backed Republican Senate candidate

Louisiana state treasurer and Republican Senate candidate

ALSO MENTIONED  Mary Landrieu, Former Louisiana senator defeated by Cassidy in 2014

Part of a bigger story

11 OUTLETS
Bill Cassidy Finishes Third in Louisiana Republican Primary

Outlets agree that Bill Cassidy finished third in Louisiana’s Republican primary and did not advance to the runoff; President Trump had backed Julia Letlow, who advanced. Left-leaning outlets connect Cassidy’s defeat to Trump’s backing of Letlow. Center outlets report the result and runoff, while also examining Trump’s influence and the implications for Senate Republicans. Right-leaning outlets emphasize Trump’s role in Cassidy’s defeat and place it in the wider context of his challenges to Republican incumbents.

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