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Sen. Cassidy battles Trump-backed challenger in Louisiana Republican primary

Letlow advanced to the runoff after finishing ahead of Cassidy, with Trump’s endorsement central to her campaign.

Sen. Cassidy battles Trump-backed challenger in Louisiana Republican primary
Image · New Haven Register

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Outlet credibilityNew Haven Register85/100 HIGH
This article1 analysis · Oct 6, 2026

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May 17, 2026
tl;dr

Bill Cassidy lost Louisiana’s Republican Senate primary, while Julia Letlow and John Fleming advanced to a runoff. The result highlights Donald Trump’s influence in the party and comes amid changes to Louisiana’s election schedule and voting system.

Community verdict

VOTING CLOSED
How does this story look for
Julia Letlow R · LA-5
NOT RATEDCLOSED

No good or bad look here

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

● INFORMATIONAL

People in this story

SWIPE →
Julia Letlow
R · LA-5

Louisiana representative who advanced to the Republican Senate runoff

PRIMARY SUBJECT
Donald Trump
R · President of the United States

President who endorsed Letlow and attacked Cassidy

Trump's version of this story ↗
Bill Cassidy
R · LA · SEN

Louisiana senator defeated in the Republican primary

Cassidy's version of this story ↗
Thomas Massie
R · KY-4

Kentucky representative facing a Trump-backed primary challenger

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

Health and Human Services secretary and former nominee supported by Cassidy

Louisiana Democratic Senate candidate who advanced to a runoff

Louisiana Democratic Senate candidate whose runoff position was unresolved

Louisiana Democratic Senate candidate whose runoff position was unresolved

Trump-backed Republican challenger to Thomas Massie

Louisiana Senate candidate who advanced to the Republican runoff

ALSO MENTIONED  Casey Means, Trump’s second choice for surgeon general; Dadrius Lanus, Executive director of the Louisiana Democratic Party; Jeff Landry, Louisiana political figure who suggested Letlow as a Senate challenger

Part of a bigger story

43 OUTLETS
Julia Letlow Advances to Louisiana Senate Runoff

Julia Letlow and John Fleming advanced to a runoff in Louisiana’s Republican Senate primary, while Bill Cassidy finished third and did not advance. Letlow had President Trump’s endorsement. Center outlets emphasize the result and often present the race as a test of Trump’s influence, with Cassidy’s impeachment vote as context. Right-leaning outlets also stress Trump’s role but more often cast Cassidy’s loss as payback for that vote.

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