WASHINGTON, DC - DECEMBER 03: Jared Isaacman, U.S. President Donald Trump's nominee to be National Aeronautics and Space Administration (NASA) Administrator, testifies during his confirmation hearing in the Russell Senate Office Building on Capitol Hill on December 3, 2025 in Washington, DC. Isaacman, a billionaire entrepreneur and close associate of SpaceX CEO Elon Musk, faces a rare second confirmation hearing before the Senate Commerce, Science and Transportation Committee. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - DECEMBER 03: Jared Isaacman, U.S. President Donald Trump's nominee to be National Aeronautics and Space Administration (NASA) Administrator, testifies during his confirmation hearing in the Russell Senate Office Building on Capitol Hill on December 3, 2025 in Washington, DC. Isaacman, a billionaire entrepreneur and close associate of SpaceX CEO Elon Musk, faces a rare second confirmation hearing before the Senate Commerce, Science and Transportation Committee. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - DECEMBER 03: U.S. Sen. Ed Markey (D-MA) questions Jared Isaacman, U.S. President Donald Trump's nominee to be National Aeronautics and Space Administration (NASA) Administrator, during a confirmation hearing in the Russell Senate Office Building on Capitol Hill on December 3, 2025 in Washington, DC. Isaacman, a billionaire entrepreneur and close associate of SpaceX CEO Elon Musk, faces a rare second confirmation hearing before the Senate Commerce, Science and Transportation Committee. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - DECEMBER 03: Jared Isaacman, U.S. President Donald Trump's nominee to be National Aeronautics and Space Administration (NASA) Administrator, testifies during his confirmation hearing in the Russell Senate Office Building on Capitol Hill on December 3, 2025 in Washington, DC. Isaacman, a billionaire entrepreneur and close associate of SpaceX CEO Elon Musk, faces a rare second confirmation hearing before the Senate Commerce, Science and Transportation Committee. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - DECEMBER 03: Jared Isaacman, U.S. President Donald Trump's nominee to be National Aeronautics and Space Administration (NASA) Administrator, testifies during his confirmation hearing in the Russell Senate Office Building on Capitol Hill on December 3, 2025 in Washington, DC. Isaacman, a billionaire entrepreneur and close associate of SpaceX CEO Elon Musk, faces a rare second confirmation hearing before the Senate Commerce, Science and Transportation Committee. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - DECEMBER 03: Jared Isaacman, U.S. President Donald Trump's nominee to be National Aeronautics and Space Administration (NASA) Administrator, testifies during his confirmation hearing in the Russell Senate Office Building on Capitol Hill on December 3, 2025 in Washington, DC. Isaacman, a billionaire entrepreneur and close associate of SpaceX CEO Elon Musk, faces a rare second confirmation hearing before the Senate Commerce, Science and Transportation Committee. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - DECEMBER 03: Jared Isaacman, U.S. President Donald Trump's nominee to be National Aeronautics and Space Administration (NASA) Administrator, testifies during his confirmation hearing in the Russell Senate Office Building on Capitol Hill on December 3, 2025 in Washington, DC. Isaacman, a billionaire entrepreneur and close associate of SpaceX CEO Elon Musk, faces a rare second confirmation hearing before the Senate Commerce, Science and Transportation Committee. (Photo by Anna Moneymaker/Getty Images)

WASHINGTON, DC - DECEMBER 03: U.S. Sen. Andy Kim (D-NJ) questions Jared Isaacman, U.S. President Donald Trump's nominee to be National Aeronautics and Space Administration (NASA) Administrator, during a confirmation hearing in the Russell Senate Office Building on Capitol Hill on December 3, 2025 in Washington, DC. Isaacman, a billionaire entrepreneur and close associate of SpaceX CEO Elon Musk, faces a rare second confirmation hearing before the Senate Commerce, Science and Transportation Committee. (Photo by Anna Moneymaker/Getty Images)