Billionaire Elon Musk said Saturday he is forming a third political party, after a dramatic falling out with Donald Trump, indicating he will make good on threats he made if the president’s domestic policy bill became law.

MAGA supporters could be "drawn to Musk's views about government spending, technology and trade," a political scientist told Newsweek.

Elon Musk wants to build a new political party to challenge America's two-party system. But it won't be easy, even for the world's richest man.