Transportation Secretary Sean Duffy joined House GOP leaders at their press conference on Day 23 of the government shutdown to discuss the effects of air traffic controllers working without pay.

Acting NASA chief Sean Duffy and billionaire Elon Musk on Tuesday traded barbs online over who should lead the space agency, a day after Duffy invited companies to compete with Musk's SpaceX for a moon landing mission.

Musk’s comments come one day after Duffy said he was in the process of reopening solicitations for a contract that had been awarded to SpaceX as part of the Artemis III project.

Elon Musk’s biographer, Walter Isaacson, said the SpaceX CEO is in “demon mode” over the prospect of NASA being folded into the U.S. Department of Transportation. Isaacson, who spent two years shadowing Musk,

A close ally of Donald Trump, whose entreaties to the president to select a friend of his as the transportation secretary fell on deaf ears, resorted to having his team search for“dirt” on eventual pick Sean Duffy,

Elon Musk launches a series of posts on X responding to Transportation Secretary Sean Duffy after he claimed Musk's company SpaceX was 'falling behind' in it's mission to return to the moon.

Acting NASA Administrator Sean Duffy said SpaceX is “behind schedule” and thwarting the space agency’s ability to beat China back to the moon.