The billionaire’s swipes at Sean Duffy are the latest example of his tangling with members of the Trump administration.

Elon Musk is taking aim at the head of NASA amid news that the U.S. space agency may consider companies other than SpaceX to ...

NASA has suffered greatly since Trump was sworn in earlier this year, with leadership looking to slash budgets and reduce ...

Starship was NASA's vehicle of choice to land astronauts on the moon before NASA head Sean Duffy's latest move. Now, Musk is ...

Acting NASA chief Sean Duffy and billionaire Elon Musk on Tuesday traded barbs online over who should lead the space agency, ...

Transportation Secretary Sean Duffy is reportedly in a power struggle with Jared Isaacman, an Elon Musk ally, over who will ...

“Sean Dummy is trying to kill NASA!” Musk wrote on X, which he also owns, using an insulting nickname to refer to the acting ...

SpaceX Chief Executive Elon Musk hurled insults at NASA’s acting administrator a day after complaints SpaceX was behind ...

Tech billionaire Elon Musk took a swing at acting NASA Administrator Sean Duffy on Tuesday, calling him “Sean Dummy” and ...

Elon Musk has hammered acting NASA chief Sean Duffy repeatedly on social media over the past few days, calling him "Sean ...

As the government shutdown crosses the three-week mark, Democrats are increasingly calling on President Donald Trump to get ...

The SpaceX CEO took shots at Transportation Secretary Sean Duffy as Duffy and Jared Isaacman position themselves to lead the ...