The billionaire has made clear he is frustrated with the obstacles he encountered as he tried to upend the federal bureaucracy.

The billionaire Tesla CEO departed a day after he called a Republican bill to fund Trump's agenda "disappointing."

At a celebratory rally after Trump’s inauguration, Musk’s White House career got off to a contentious start when he seemingly offered a straight-arm salute at the Capitol One Arena in Washington, D.C., as he excitedly told the crowd: “My heart goes out to you.”

Elon Musk is officially making his exit from the federal government, and it appears he is taking one of President Donald Trump’s top aides with him. Katie Miller, a top adviser and spokesperson for the Department of Government Efficiency at the White House is headed out to work for the tech billionaire,

WASHINGTON—Elon Musk gave new fuel to GOP critics of the Republicans’ multitrillion-dollar tax and spending agenda, saying that the current measure failed to reduce the federal deficit, echoing complaints from hard-line factions in both the House and the Senate.

Elon Musk is leaving his government role as a top adviser to President Donald Trump after spearheading efforts to slash the scale of the federal bureaucracy.

(Reuters) -Tesla shares rose more than 2% on Thursday after news that CEO Elon Musk was stepping away from the Trump administration, fueling hopes that he will sharpen focus on the automaker as it gears up for its hotly anticipated robotaxi debut.

Elon Musk's time in Washington, D.C., was an inferno. He was appointed the head of the Department of Government Efficiency (DOGE) as a top advisor to President Donald Trump, though he is not considered an official member of his cabinet — an issue that comes into play later in this story.