Elon Musk bought Twitter in 2022 with the hopes of turning it into “the everything app” that will let users zap money to each other and where they could eventually conduct their “entire financial world.

Government investigations into Mr. Musk’s companies are stalling amid President Trump’s firings and Biden administration resignations.

Elon Musk has long railed against the U.S. government, saying a crushing number of federal investigations and safety programs have stymied Tesla, his electric car company, and its efforts to create fleets of robotaxis and other self-driving automobiles.