Israel Defeats Thomas Massie in the Kentucky Primary

Record-breaking funding of Ed Gallrein by AIPAC

Thomas Massie’s newsletter

Pro-Israel groups and billionaire donors delivered a decisive blow to independent-minded Republican congresspeople in a record-shattering primary defeat of Thomas Massie in Kentucky

In a stunning upset on May 19, 2026, popular 16-year incumbent Thomas Massie (who secured his 2024 election with 75.9% of ballots) was defeated in the Republican primary for Kentucky’s 4th Congressional District by a candidate backed by Trump and a cabal of New York-based pro-Israel billionaires.

The race shattered records as the most expensive U.S. House primary in history, with total ad spending exceeding $32–37 million. While President Trump’s personal endorsement of his opponent played a major role, a massive influx of funding from pro-Israel groups and aligned billionaires proved decisive in tilting the scales against Massie, a vocal skeptic of unconditional U.S. foreign aid and AIPAC influence.

AIPAC-backed Ed Gallrein secured approximately 55% of the vote to Massie’s 45%, according to projections and results as nearly all precincts reported.

The SuperPAC anti-Massie funding even included paying for AI-generated deepfake video content:

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The broadcast triggered immense scrutiny because Kentucky had previously passed a state law intended to regulate and restrict the usage of deceptive AI deepfakes against political candidates. However, because the ad was produced and aired by an independent Super PAC rather than an official candidate campaign, it successfully made it onto television screens

Massie himself framed the contest as a referendum on foreign policy and outside interference, repeatedly stating that at least 95% of the funding arrayed against him originated from pro-Israel sources rather than Kentucky voters.

The Funding Machine: Extensive Breakdown of Ed Gallrein’s Pro-Israel Backers

Gallrein’s campaign and supporting outside groups benefited from direct contributions, independent expenditures, and super PAC activity. Pro-Israel entities alone accounted for tens of millions in ads and support. Here is a detailed look at the key players:

1. AIPAC and Its Super PAC, United Democracy Project (UDP) AIPAC’s electoral arm poured millions directly into the race, with reports indicating UDP spending over $4–5 million on ads attacking Massie for votes against pro-Israel measures (e.g., resolutions supporting Israel post-Oct. 7, 2023, or condemning Iranian attacks). This was part of a broader ~$9–15+ million effort by pro-Israel PACs boosting Gallrein and opposing Massie. AIPAC has a long history of targeting critics of Israel across party lines; Massie’s opposition to aid packages and symbolic resolutions made him a prime target.

2. Republican Jewish Coalition (RJC) Victory Fund The RJC Victory Fund spent roughly $3.9–4+ million on ads, marking one of its heaviest investments in a House primary. Ads highlighted Massie’s criticism of joint U.S.-Israel actions and promoted Trump’s endorsement of Gallrein.

3. Miriam Adelson The Israeli-American casino magnate (widow of Sheldon Adelson) and major Republican donor funneled money through Preserve America PAC, which contributed $750,000+ to the Trump-aligned MAGA KY super PAC supporting Gallrein. Adelson has poured over $100 million into pro-Trump and pro-Israel causes in recent cycles. Massie publicly called her out as an “Israeli citizen” prioritizing foreign interests over U.S. taxpayers.

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4. Paul Singer The hedge fund billionaire and prominent pro-Israel donor contributed $1 million directly to MAGA KY and additional millions (including $2.5 million reported in one cycle) to AIPAC-aligned groups like UDP. Singer’s investments in the effort were among the largest individual impacts.

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5. John Paulson Another hedge fund titan, Paulson contributed hundreds of thousands (e.g., $250,000 reported to MAGA KY) and was grouped by Massie with Adelson and Singer as key “Israel-first” billionaires driving the opposition.

6. MAGA KY Super PAC (Trump-Aligned) Set up by Trump operatives like Chris LaCivita, this group spent millions attacking Massie. It was heavily underwritten by the above pro-Israel donors (Adelson-linked PAC, Singer, Paulson). Total outside pro-Israel and aligned spending supporting Gallrein exceeded $12–15 million in some tallies.

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Other players included Christians United for Israel (CUFI) Action Fund, which ran billboards and additional advocacy.

These donors and groups have deep ties to pro-Israel advocacy: Adelson has spoken at the Knesset and funded Israeli causes; Singer and Paulson are major Republican Jewish Coalition supporters; AIPAC and RJC explicitly lobby for strong U.S.-Israel relations and military aid. None are based in Kentucky — the funding was overwhelmingly national and issue-driven.

Massie’s campaign raised significant funds too (he outraised Gallrein directly in some periods via libertarian and gun-rights backers), but the outside spending deluge — much of it on negative ads — proved overwhelming in a low-turnout primary.

[embed]Inside the wild $25 million fight to oust top GOP Trump critic Thomas Massie One group is running ads depicting Jewish billionaire Paul Singer with a rainbow Star of David.www.axios.com

Context and Implications

Massie, a libertarian-leaning Republican, has long opposed blank-check foreign aid (including to Israel), expansive spending bills, and what he sees as AIPAC’s influence. He voted against Iron Dome funding in the past and pushed for releasing Epstein files, further angering some donors. Trump’s grudge — over Massie’s occasional breaks on procedural or spending votes — opened the door for this coalition.

Gallrein campaigned as a loyal “America First” Trump ally, emphasizing border security, opposition to endless foreign entanglements in rhetoric, and party unity. He now advances to the general election in the heavily Republican district as the heavy favorite.

Critics of the outcome decry it as billionaire capture of a local race and a warning about foreign lobby influence in U.S. primaries. Supporters of Gallrein and the pro-Israel effort argue it was legitimate democratic participation defending a key ally against an outlier who bucked mainstream GOP foreign policy. The race highlighted deepening GOP fissures on Israel, aid, and “America First” isolationism versus traditional hawkishness.

Regardless of perspective, the Kentucky 4th primary stands as a case study in modern campaign finance: enormous outside money from motivated national donors can overcome incumbent advantages in low-information primaries.

“Israel” did not literally run against Massie, but the network of pro-Israel PACs and billionaires demonstrably played an outsized role in his defeat.