The White House has withdrawn Jared Isaacman's nomination to be NASA administrator, adding uncertainty to the agency at a time when it faces proposed deep budget cuts. The announcement came in a statement from White House spokesperson Liz Huston, who said a new nominee aligned with President Trump's “America First” agenda will be named soon.
“The Administrator of NASA will help lead humanity into space and execute President Trump's bold mission of planting the American flag on the planet Mars,” Huston said, emphasizing the importance of alignment with the administration's priorities. The statement did not explain why Isaacman's nomination was withdrawn, nor did it clarify whether the decision originated from the White House or Isaacman himself. Other reports attribute the move to the administration.
President Trump confirmed the withdrawal via social media late May 31, citing “prior associations” as the reason and promising to announce a new nominee who will be “Mission aligned” and prioritize America's leadership in space.
Isaacman responded with gratitude to the President, Senate, and supporters, calling the past six months since the nomination “enlightening and, honestly, a bit thrilling.” He said, “The President, NASA and the American people deserve the very best—an Administrator ready to reorganize, rebuild and rally the best and brightest minds to deliver the world-changing headlines NASA was built to create.”
The decision surprised many in the space community, as Isaacman appeared poised for imminent Senate confirmation. Senate Majority Leader John Thune (R-S.D.) had filed cloture on the nomination May 22, setting the stage for a confirmation vote the week of June 3. Isaacman enjoyed bipartisan Senate support, including favorable votes from several Democrats on the Commerce Committee, as well as endorsements from 28 former NASA astronauts and former NASA Administrator Jim Bridenstine, who described Isaacman as an “amazing” choice.
Senator Tim Sheehy (R-Mont.) expressed disappointment, tweeting that Isaacman was “a strong choice” and opposing efforts to derail the nomination.
Reports speculate that tensions between President Trump and Elon Musk, SpaceX CEO and close presidential adviser, may have influenced the decision. Isaacman, a SpaceX customer and leader of private astronaut missions such as Inspiration4 and Polaris Dawn, was widely viewed as Musk's preferred candidate for NASA leadership.
According to a report by The New York Times, President Trump's decision followed revelations of Isaacman's past donations to Democratic candidates and party offices—facts that had been public knowledge since the nomination announcement.
The withdrawal coincides with NASA's release of its fiscal year 2026 budget proposal, which seeks an overall 25% spending cut with steeper reductions in science and space technology programs. Isaacman had previously expressed concern about deep cuts to science funding, calling them suboptimal.
In his social media post, Isaacman affirmed his optimism about the future of human space exploration and his ongoing support for NASA and the administration's mission, writing, “I have not flown my last mission—whatever form that may ultimately take—but I remain incredibly optimistic that humanity's greatest spacefaring days lie ahead.”