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Thomas Massie lost the Republican primary in Kentucky’s 4th Congressional District to Trump-backed challenger Ed Gallrein.

The margin appears to have been roughly:

• Gallrein: about 54%
• Massie: about 46%

So Massie lost by around 8 percentage points.  

The main reasons repeatedly cited were:

• Donald Trump personally targeted Massie for defeat and endorsed Gallrein early.  
• Massie had publicly broken with Trump on several issues, including:
  • opposition to parts of Trump’s tax/spending agenda,
  • criticism of military action toward Iran,
  • demands for more Epstein-file transparency,
  • and his general independent/libertarian voting style.  
• The race became extraordinarily expensive — reportedly the most expensive House primary ever, with more than $30 million spent.  
• Republican primary voters in that district appear still strongly aligned with Trump personally, so “loyalty to Trump” became the dominant issue.  

Massie had survived previous clashes with Trump, but this time Trump and allied groups concentrated massive resources into removing him.

Several reports also noted outside spending from pro-Trump and pro-Israel aligned groups attacking Massie.  

Claude :

Thomas Massie lost his Kentucky Republican primary last night — just yesterday.

He was defeated by Trump-backed challenger Ed Gallrein, a Navy SEAL veteran, in Kentucky’s 4th Congressional District, becoming the latest Republican whose career was ended by Trump after being deemed disloyal.

The core reason was Trump’s sustained campaign against him.

Massie lost under an onslaught of negative ads and steadfast opposition from older Republicans who remain fiercely loyal to Trump.

Trump had called Massie “the worst congressman in the long and storied history of the Republican party” and “an obstructionist and a fool.”

The specific triggers for Trump’s wrath included Massie’s vote against a short-term government funding bill in early 2025, after which Trump posted that he should be primaried.

Massie had also been a vocal advocate for releasing the Epstein files, and Democratic Rep.

Ro Khanna framed his defeat as retaliation from the “Epstein class,” noting Massie won voters under 45 by 30 points.

In his concession speech, Massie told supporters: “There is a yearning in this country for someone who will vote for principles over party.”