The president canceled his nomination of Jared Isaacman as NASA's administrator after Musk officially left the White House on Friday.

Isaacman, a billionaire, pilot and astronaut, was close with Musk and even flew to space with Musk's Dragon program on Operation Polaris Dawn in 2024.

But he had a history of donating funds to Democrats, including recent Democratic candidates who ran against GOP senators Tim Sheehy of Montana and Bernie Moreno of Ohio in 2024.