Trump-Backed Challenger Leads Thomas Massie in New GOP Primary Poll

Trump-Backed Challenger Leads Thomas Massie in New GOP Primary Poll

Kentucky Rep. Thomas Massie has been a thorn in President Donald Trump’s side for years. Often one of the few Republicans willing to break ranks with Trump on major legislation, Massie has repeatedly drawn the president’s ire in public clashes over policy and spending. One of the most notable flashpoints came in 2025, when Massie opposed the “One Big Beautiful Bill Act.”

The final rupture came when Massie publicly accused the Justice Department of withholding the Epstein files that could embarrass Trump. Massie called for the full release of the documents, arguing, “We can’t avoid justice just to avoid embarrassment for some very powerful men.”

Given their long-running feud, few were surprised when Trump pushed for a primary challenge against Massie ahead of Kentucky’s upcoming congressional primary.

The libertarian-leaning Massie, now serving his seventh term in Congress, has historically cruised to reelection, winning each of his races by comfortable margins and never receiving less than 60% of the vote. Until recently, he appeared poised to do the same in his current primary contest against Trump-backed challenger Ed Gallrein.

But a newly released survey from right-leaning pollster Quantus Insights has cast some doubt on that assumption.

The survey of 908 likely voters, conducted May 11–12, found Gallrein leading Massie by 5.2 points, 48.3% to 43.1%. When respondents who leaned toward a candidate were included, Gallrein’s advantage widened to 7.7 points, 52.8% to 45.1%.

That marks a striking reversal from an earlier April 6–7 survey by Quantus, which showed Massie leading Gallrein by 9 points.

Of the three polls currently included in the RealClearPolitics average for this race, two were conducted by Quantus. The third, an April 6–7 poll from Big Data Poll, showed Massie ahead by 4 points.

Among voters who were not completely sure which candidate they would choose, Quantus found that 52.4% said they leaned toward Gallrein, 23.4% leaned toward Massie, and 24.1% were “still completely undecided.”

The pollster noted that “Gallrein is winning the leaner pool by more than two-to-one, moving him above 50% when firm support and leaners are combined.”

Quantus’ Key Takeaway:

Massie retains a durable base of support, but Gallrein leads on the initial ballot and strengthens his position once leaners are allocated. In a nationalized Republican primary shaped by Trump’s endorsement, outside spending, and Massie’s independent brand, Gallrein enters the final stretch with the advantage.

NEW QUANTUS INSIGHTS POLL | May 11–12, 2026

Kentucky's CD4 Republican primary has become one of the most closely watched House primaries in the country, and our latest survey finds Trump-backed challenger Ed Gallrein leading Rep. Thomas Massie.

📊 Kentucky CD4 GOP Primary
🔴 Ed… pic.twitter.com/eY4cvRqUnR

— Quantus Insights (@QuantusInsights) May 13, 2026

Axios reported on Monday that this race has become the most expensive U.S. House primary in history. According to AdImpact, as of Monday, with still a week to go, ad spending had already topped $25.6 million.

The outlet also claims it’s one of the nastiest primaries ever:

The race has turned into an all-out war of inflammatory accusations, savage insults and AI deepfakes.

• One pro-Gallrein super PAC ad features an AI-generated Massie dining and holding hands with Reps. Alexandria Ocasio-Cortez (D-N.Y.) and Ilhan Omar (D-Minn.), accusing him of being in a “throuple” and “cheating with ‘The Squad’ on the America First movement.”
• Pro-Massie groups have attempted to brutally undermine Gallrein’s MAGA credentials, labeling him “woke Eddie” and depicting the retired Navy SEAL in one AI-generated ad as a soldier abandoning Trump on a battlefield.
• Both candidates have attacked each other as being insufficiently conservative on a wide range of social issues, including diversity, equity and inclusion, transgender rights, Black Lives Matter, and immigration.

We’ll find out next week whether Trump’s endorsement is enough to carry Gallrein across the finish line. Trump’s influence certainly made a difference for six Republican Indiana Senate incumbents who lost their primaries after voting against redistricting legislation last December.

In a separate development, Massie’s former girlfriend has accused him of offering her hush money to drop a wrongful termination complaint against Rep. Victoria Spartz (R-IN), for whom she briefly worked. Axios first reported the allegations.

Elizabeth writes commentary for Legal Insurrection and The Washington Examiner. She is an academy fellow at The Heritage Foundation. Please follow Elizabeth on LinkedIn.

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