Ed Gallrein, a retired Navy SEAL supported by former President Donald Trump, defeated Rep. Thomas Massie in the Republican primary for Kentucky's 4th Congressional District on May 19, 2026. Gallrein captured 54% of the vote to Massie's 46%, according to the Associated Press call on election night [1, 2].
The contest was the most expensive House primary race in U.S. history, with $32 million spent on advertising. Pro-Israel groups contributed millions targeting Massie for opposing U.S. aid to Israel [3, 1]. Gallrein's campaign received high-profile support, including a personal visit from Defense Secretary Pete Hegseth on May 18, who stressed no taxpayer funds were used for his campaigning [3].
Trump aggressively criticized Massie on Truth Social in the days leading up to the election, posting at least 11 times between May 16 and 18. He called Massie “the worst Congressman in the long and storied history of the Republican Party” and labeled him an “obstructionist and a fool,” urging voters to "Vote him out of office tomorrow" [3, 1]. Their feud dates back to Trump's first term, with Massie opposing key Trump-backed policies including the 2017 tax law and U.S. aid to Israel [3, 1].
Massie conceded after the loss, saying, “I would've come out sooner but I had to call my opponent and concede and it took awhile to find Ed Gallrein in Tel Aviv,” referencing Gallrein’s location abroad [2]. Massie also issued a curt social media response to GOP colleagues who congratulated Trump on the primary result [2].
Reactions among Republicans varied. Sen. Lindsey Graham congratulated Gallrein and commended Massie for staying true to his beliefs despite disagreements. “He is a warrior and businessman — someone who has truly sacrificed for our nation,” Graham said [2]. Meanwhile, Rep. Marjorie Taylor Greene criticized the outcome, declaring, “Tonight the future of the Republican Party was destroyed” and pointing to foreign lobbying influence [2].
The damaging primary reflected sharp intra-party divides over foreign policy and Trump’s influence. Massie's opposition to U.S. aid to Israel has been linked both to his protest of Israeli Prime Minister Netanyahu's policies and broader isolationist views, while pro-Israel groups actively targeted him with ads [3, 1].
Massie's defeat ends a tenure marked by frequent clashes with Trump-backed GOP priorities. The next step for Gallrein is the November general election, where he will seek to secure the seat for the Republicans in Kentucky's 4th District.
