Elon Musk and Treasury Secretary Scott Bessent got into a heated shouting match in earshot of President Trump and other officials in the White House last week during a dispute about the IRS, two witnesses and three sources briefed on the matter tell Axios.

"It was two billionaire, middle-aged men thinking it was WWE in the hall of the West Wing," one witness said of the argument last Thursday. (Bessent's net worth is actually $520 million.)