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Bill Cassidy loses Louisiana Republican primary in win for Trump

Letlow finished ahead of Cassidy and will face John Fleming in the runoff after receiving Trump’s endorsement.

Bill Cassidy loses Louisiana Republican primary in win for Trump
Image · The Christian Science Monitor

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Outlet credibilityThe Christian Science Monitor82/100 HIGH
This article1 analysis · Oct 6, 2026

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459 stories · 96–97 · updated Oct 7, 2026

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May 17, 2026
tl;dr

Bill Cassidy lost Louisiana’s Republican Senate primary, finishing behind Julia Letlow and John Fleming, who will compete in a runoff. The result highlights President Donald Trump’s influence in the race and in Republican primaries.

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

Representative and candidate in Louisiana’s Senate runoff

PRIMARY SUBJECT
Bill Cassidy
R · LA · SEN

Incumbent senator defeated in Louisiana’s Republican primary

Cassidy's version of this story ↗
Donald Trump
R · President of the United States

President whose endorsement and attacks shaped the primary

Trump'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

Secretary of Health and Human Services and former nominee discussed in connection with Cassidy’s committee role

Democratic Senate candidate who advanced to a runoff

Democratic Senate candidate whose runoff status remained too close to call

Democratic Senate candidate whose runoff status remained too close to call

Trump-backed challenger to Thomas Massie in a Kentucky Republican primary

Louisiana treasurer and Senate candidate advancing to the runoff

Former U.S. representative and Julia Letlow’s late husband

ALSO MENTIONED  Casey Means, Trump’s second choice for surgeon general whose nomination was withdrawn; Dadrius Lanus, Executive director of the Louisiana Democratic Party; Jeff Landry, Louisiana governor who suggested Letlow as a Senate challenger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