Musk, who supported Trump’s campaign and also served as an adviser to the White House, has criticized the tax and spending bill the president is pushing.

Trump, making his first comments on Musk’s criticism of his bill during an Oval Office press conference, insinuated the Tesla CEO opposes his “One Big Beautiful Bill Act” because he is “upset” the electric vehicle tax credit was removed, adding he’s not sure he’ll remain friends with Musk and alleging Musk “knew the inner workings of the bill.”