Elon Musk’s shouting match with Treasury Secretary Scott Bessent might have been the final nail in the coffin for the tech billionaire’s four-month stint in the White House, but it came after months of bubbling frustration at Musk’s “chain-saw” approach to dismantling the federal government.

Musk and Bessent exploded at each other in April when Musk attempted to force through his pick to lead the IRS—Gary Shapley—behind Bessent’s back. (Musk eventually lost this battle—Shapley lasted less than 72 hours before Bessent tapped Michael Faulkender to replace him.)

“Fuck you! Fuck you! Fuck you!” a typically mild-mannered Bessent was heard shouting after Musk as they charged down the halls of the West Wing.