Defense Secretary Pete Hegseth is barreling toward a confrontation with Senate Republicans as frustration mounts over the Pentagon's senior staff churn, the absence of a clear exit strategy for the Iran conflict, and the administration's failure to court Democratic support for its funding agenda.
The friction is set to boil over this fall when the White House seeks more than $70 billion in emergency national security spending to sustain the Iran war, which has now dragged on for over six months. Key GOP lawmakers are demanding answers about the recent resignation of Army Secretary Dan Driscoll and the broader pattern of forced departures among top military leaders.
Sen. Thom Tillis (R-N.C.), a former Armed Services Committee member, publicly blasted Hegseth on Wednesday, accusing him of "inept management" and urging President Trump to dismiss him. In a post on X, Tillis wrote, "I have never witnessed more inept management of the brave men and women who serve our country. He is intimidated by competence and retreats to ginning up culture wars instead of soberly attending to the vital work of our national defense and the health and well-being of our fighting force." Tillis called on Trump to "find a new leader at the Pentagon who will retain and empower our military talent rather than diminish it." The Pentagon declined to comment.
The criticism comes amid a string of high-profile exits, including Gen. Randy George, former Army chief of staff, and Gen. Christopher Donahue, the top Army commander in Europe. Sen. Mike Rounds (R-S.D.) said he was "disappointed" by Driscoll's resignation, noting that Driscoll was "frustrated with some of his top generals being released." Rounds added that the departures raise questions about Pentagon leadership, saying, "We've had some very good generals that are no longer there that we respected and that had a huge amount of foundational knowledge."
A former senior GOP Armed Services aide described Hegseth as "an absolute train wreck for Republicans headed into the midterms," but noted that lawmakers are reluctant to confront Trump over a Cabinet member, especially with the president expected to drive voter turnout. The aide accused Hegseth of treating the Pentagon "like his own personal playground in the culture wars," driving out over two dozen senior leaders and bypassing the chain of command in official investigations. House Armed Services Committee Chair Mike Rogers (R-Ala.) expressed fatigue with the upheaval, saying, "I'm tired of all the churn. I want to see some stability."
At the heart of the discord is a dispute over military innovation. Several departed generals, including George and Donahue, clashed with Hegseth over the creation of a special Unmanned Assault Battalion in Europe designed to test drone-heavy tactics learned from the Ukraine war. Acting Army Chief of Staff Gen. Christopher LaNeve recently ordered the battalion to return to its core airborne infantry mission, a move that Tillis and Rounds questioned. Tillis argued that "the old way of doing business no longer applies" and praised Driscoll and George for starting "a transformative period of innovation."
The unrest is compounded by the war in Iran, which has exceeded Trump's initial prediction of four to five weeks. One Republican senator, speaking to The Hill in July, said Hegseth is losing support within the military, and those concerns are echoing on Capitol Hill. With the midterm elections looming, some GOP lawmakers worry that Hegseth's controversies could become a political liability, yet they remain hesitant to openly challenge Trump. As the calls for Hegseth's removal grow louder, the Pentagon faces a credibility test with its congressional overseers.
Rounds, when asked if he still had confidence in Hegseth, deferred to Trump's judgment, saying, "The president chooses who he wants for his key leaders. I think they're trying. We want to see results." The coming weeks will test whether GOP senators are willing to press the issue publicly or continue to voice their concerns behind closed doors. The war's stalemate and the officer promotion controversies only add to the pressure on Hegseth as he prepares for the funding battle.
