President Donald Trump is "not interested" in a call with Tesla CEO Elon Musk to resolve their feud, a senior White House official told NBC News on Friday morning.

The two billionaires launched a war of words on Thursday over Musk's continued criticism of Trump's proposed tax bill , which is pending in the Senate .

Trump said Musk, who until a week ago was one of his top government advisors, had gone "crazy" and threatened to kill federal contracts with his companies, which include SpaceX.

Musk, in turn, said Trump could not have been elected president without his massive financial support, and accused the Republican of ingratitude for that, and for lying in saying that he had ousted Musk from the White House because the CEO was "wearing thin."

Read more CNBC pol

See Full Page