Musk and Trump traded scathing missives on social media in early June. Trump has previously threatened to end government contracts with Musk's companies, saying during their June fallout that "the easiest way to save money" would be to "terminate Elon’s Governmental Subsidies and Contracts."

Weeks after Elon Musk said he would step back from politics, he's back in the fray publicly bashing the Republican megabill and calling for the formation of a new party if the bill passes.