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Sen. Bill Cassidy faces first primary since his Trump impeachment vote

Cassidy is seeking re-election amid scrutiny of his vote to convict Donald Trump and disputes over the Louisiana primary.

Sen. Bill Cassidy faces first primary since his Trump impeachment vote
Image · NBC New York

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This article1 analysis · Oct 6, 2026

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

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NBC New Yorkvia NBC News
May 16, 2026
tl;dr

Louisiana voters are choosing among Sen. Bill Cassidy and two challengers in a Republican primary that tests the political impact of Cassidy’s 2021 vote to convict Donald Trump. The race also features competing endorsements, disputes over the primary rules and more than $30 million in reported ad spending.

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 facing a Republican primary challenge

PRIMARY SUBJECT

Louisiana Senate candidate challenging Cassidy

Fleming's version of this story ↗
Julia Letlow
R · LA-5

Louisiana representative and Republican Senate primary challenger

Letlow's version of this story ↗
Mike Johnson
R · LA-4

House speaker who did not endorse a candidate

Donald Trump
R · President of the United States

President who endorsed Letlow and is central to the discussion of Cassidy’s impeachment vote

John Thune
R · SD · SEN

Senate majority leader who expressed support for Cassidy

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

Health and Human Services secretary whose vaccine views have clashed with Cassidy

ALSO MENTIONED  Casey Means, Trump’s former nominee for surgeon general; Jeff Landry, Louisiana governor backing Letlow who changed the primary system and delayed House primaries

Part of a bigger story

50 OUTLETS
Bill Cassidy Loses Louisiana Republican Senate Primary

Outlets agree that Bill Cassidy lost Louisiana’s Republican Senate primary and that Julia Letlow and John Fleming advanced to a runoff. Left-leaning outlets link the defeat to Cassidy’s breaks with Trump, with one article also relaying his campaign’s claim that changes to the primary process could restrict voting. Center outlets emphasize the result and Trump’s influence, while some also cover Cassidy’s concession or praise from Mitt Romney. Right-leaning outlets tie the loss to Cassidy’s impeachment vote and Trump’s intervention, and some frame it as a rebuke of Cassidy’s opposition to Trump.

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