President Trump slammed the tech billionaire's announcement that he's forming a third political party. Here's what to know about the America Party.

Already, he’s receiving support from others in his tax bracket, including Mark Cuban. The billionaire businessman reposted Musk’s announcement with a fire emoji, and later followed up with: “I work with the Center for Competitive Democracy. They will help you get on ballots. That is their mission.”

The onetime Trump adviser is toying with the idea of establishing his own political party as the billionaire sours on the current administration — but some GOP lawmakers aren’t convinced Musk can compete.