Defense Secretary Pete Hegseth took the unusual step of hitting the campaign trail Monday to back former Navy SEAL Ed Gallrein in his primary challenge against Rep. Thomas Massie (R-Ky.), a move that breaks with longstanding Pentagon norms and has sparked questions about the politicization of the military.
Hegseth appeared alongside Gallrein at a rally in Hebron, Kentucky, hosted by the Trump-aligned group America First Works. The event, which opened with Van Halen's "Jump," saw Hegseth deliver a full-throated endorsement of Gallrein as a "reinforcement" for President Trump's agenda.
"President Trump needs reinforcements, and that's what war fighters do," Hegseth told the crowd. "They stand behind leaders and have their back. War fighters understand mission, they understand teamwork, they understand loyalty, and they understand that in the middle of a fight, you don't weaken your own side to advance to the objective."
The primary has become a proxy battle between Trump loyalists and Republican dissenters, with the president backing Gallrein after Massie repeatedly broke with the administration on key votes. Massie, a libertarian-leaning lawmaker, voted against Trump's sweeping tax cut package, pressed for the release of Jeffrey Epstein-related files, and joined Democrats in a resolution to limit U.S. military action against Iran.
Hegseth painted Massie as an obstructionist. "At some point, being against everything becomes an excuse for accomplishing nothing," he said. "Too much grandstanding, too few great votes, years of acting like being difficult is the same thing as being courageous—it's not."
The appearance marks a sharp departure from the tradition that Pentagon chiefs avoid partisan politics to preserve the military's apolitical image. Critics also pointed to potential Hatch Act violations, which restrict executive branch employees from using official titles or government resources for campaign activities. Hegseth's aides insisted he attended in a personal capacity and that no taxpayer funds were used. Chief Pentagon spokesperson Sean Parnell said the visit was "thoroughly vetted and cleared by lawyers" and does not violate federal law.
Hegseth, a former Fox News personality and Army National Guard veteran, has already faced controversy for efforts to reshape the Pentagon's leadership. He has defended the removal of generals and lawyers deemed insufficiently loyal as necessary to carry out Trump's directives. In a September meeting with hundreds of military leaders, he warned, "If the words I'm speaking today are making your heart sink, then you should do the honorable thing and resign."
Trump has similarly pushed boundaries by holding rallies on military bases, including at Fort Bragg, North Carolina, where soldiers were reportedly vetted for political alignment. Hegseth's own political ambitions have been the subject of speculation, with reports he has privately discussed a run for Tennessee governor in 2026—a move that would require him to resign from his Pentagon post.
Tuesday's primary is a key test of Trump's influence after the ouster of Louisiana Sen. Bill Cassidy, a Republican critic of the president. "Kentucky has a choice in this race," Hegseth said. "You can send a warrior, reinforcements for the president in our shared fight against the radical left, or you can send an obstructionist. In my mind, it's an easy choice."
The contest has drawn national attention, with Trump escalating his campaign to oust Massie. For more on the dynamics, see this analysis of the Massie-Trump showdown. Hegseth's involvement is detailed in the Pentagon's defense of the move. Meanwhile, Massie has turned Trump's attacks into a fundraising boon, as reported here.
