Why It Matters
President Donald Trump threatened to revoke his endorsement of Colorado Rep. Lauren Boebert and back a primary challenger after she campaigned for Kentucky Rep. Thomas Massie, one of Trump’s most vocal Republican critics in Congress. The public dispute highlights ongoing tensions within the Republican Party ahead of the Kentucky primary.
What Happened
Trump criticized Boebert on Truth Social on Saturday, hours after she appeared at a campaign event with Massie. The president asked supporters if anyone was interested in challenging Boebert in Colorado’s Fourth Congressional District.
Boebert had previously received Trump’s endorsement for reelection. Massie faces a Trump-backed primary challenger, retired Navy SEAL Ed Gallrein, in Kentucky’s May 19 Republican primary.
Trump wrote that Boebert was campaigning for “the Worst ‘Republican’ Congressman in the History of our Country” and said anyone supporting Massie “deserves a good Primary fight.” The president added that if the right candidate emerged, it would be his “Honor to withdraw that Endorsement.”
By the Numbers
Kentucky’s Republican primary is scheduled for May 19, 2026. Colorado’s filing deadline for primary challengers has already passed, according to Massie. Trump has previously endorsed both Boebert for her Colorado seat and Gallrein in the Kentucky race.
What They’re Saying
Boebert initially declined to comment directly when questioned by Fox News. She later defended her decision on social media, writing that she knew the risks when she agreed to stand by Massie. She stated she was “America First, America Always, and MAGA.”
Massie told Fox News following a Kentucky campaign rally that Trump should be “mending fences with these folks, not trying to burn bridges.” He noted it was too late to challenge Boebert because the filing deadline had passed.
Zoom Out
The clash reflects broader Republican divisions as Trump seeks to influence congressional primaries. Massie has broken with the president on multiple issues, including foreign policy decisions and calls for the release of government files related to convicted sex offender Jeffrey Epstein.
Trump has labeled Massie a “disloyal” Republican in separate Truth Social posts, while praising Gallrein as “a true American Patriot.”
What’s Next
Kentucky voters will decide the Republican primary on May 19. Boebert’s seat in Colorado remains secure for now due to the closed filing window, though Trump’s threat signals potential future consequences for Republicans who support his intraparty critics.