Elon Musk unleashed a fiery tirade on Twitter, slamming President Donald Trump's Big, Beautiful Bill as a "disgusting abomination" shortly after stepping down from his role as a special government employee leading the Department of Government Efficiency.

The once chummy relationship between the president and the world's richest businessman has deteriorated into a social media flame war.

Just three hours after Musk moved the target of his internet ire on Thursday from Trump’s spending bill to Trump himself, the 53-year-old Tesla CEO said, “Time to drop the really big bomb. @realDonaldTrump is in the Epstein files. That is the real reason they have not been made public.”

Why is Elon Musk trashing the legislation demanded by President Donald Trump and ushered to a razor-thin approval margin in the U.S. House?

Musk joined with GOP critics who say the multi-trillion dollar plan to enact the president's domestic priorities doesn't go far enough to cut federal spending.

Though the tech billionaire quickly rose to the (self-titled) position of ‘first buddy,’ it ended in a flash, writes Mike Bedigan and Isabel Keane