The billionaire Elon Musk said in an extraordinary Oval Office appearance on Tuesday that he was providing maximum transparency in his government cost-cutting initiative, but offered no evidence for his sweeping claims that the federal bureaucracy had been corrupted by cheats and officials who had approved money for “fraudsters.”

Answering questions from the media for the first time since his arrival in Washington to run the Department of Government Efficiency, Mr. Musk stood next to the Resolute Desk and asserted that his work was in the interest of the public and democracy. President Trump sat behind the desk, chiming in with approval as he let the world’s richest man expound for roughly 30 minutes on the rationale for the drastic overhaul of the federal bureaucracy.

The goal is to “restore democracy,” Mr. Musk said. “If the bureaucracy’s in charge, then what meaning does democracy actually have?”

Among Mr. Musk’s claims, which he offered without providing evidence, was that some officials at the now-gutted U.S. Agency for International Development had been taking “kickbacks.” He said that “quite a few people” in the bureaucracy somehow had “managed to accrue tens of millions of dollars in net worth while they are in that position,” without explaining how he had made that assessment. He later claimed that some recipients of Social Security checks were as old as 150.

“We are actually trying to be as transparent as possible,” Mr. Musk said, referring to postings by his team on his social media site, X. “So all of our actions are maximally transparent.”

He continued, “I don’t know of a case where an organization has been more transparent than the DOGE organization.”

Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.

Thank you for your patience while we verify access.

Already a subscriber? Log in.

Want all of The Times? Subscribe.