For example, Sen. Ed Markey (D-Mass.) asked Isaacman repeatedly if Musk was in the room at Mar-a-Lago, Trump's Florida estate ...

Incoming NASA administrator and billionaire fighter jet pilot-turned-SpaceX astronaut Jared Isaacman isn't keen on president ...

His inclusion is significant because the SpaceX founder has billions of dollars in national security and defense contracts at stake.

President Trump's administration removes thousands of federal workers while Elon Musk leads efficiency efforts. The cuts ...

Even as Musk’s work at the Department of Government Efficiency appeared to consume him, his top adviser created a set of ...

Elon Musk arrives for the president's address to a joint session of Congress. (Saul Loeb/Agence France-Presse/Getty Images) Elon Musk, wearing a suit and dark blue tie, just arrived to applause ...