Elon Musk has shared his own disbelief that the government efficiency department Donald Trump tapped him to lead “is real.” The world’s richest man and SpaceX owner, who holds billions of dollars in government contracts through his companies, appeared to mock the newly-created Department of Government Efficiency (DOGE) in a post on X.

Elon Musk had some relatable thoughts on the new “department” of government efficiency he’s been tasked to head with Vivek Ramaswamy. “I still can’t believe DOGE is real,” he wrote on his social media platform X on Sunday night,

The department wouldn't be a department at all, but an outside group that can likely only make suggestions — unless Trump tries to axe current laws.

Musk—the CEO of Tesla and SpaceX, and owner of X (formerly Twitter)—was quoted in Trump's announcement as saying that DOGE "will send shockwaves through the system, and anyone involved in Government waste, which is a lot of people!"

With Elon Musk as his government efficiency chief, President-elect Donald Trump has made a surprise turn to fiscal sustainability. It won't be easy.