Elon Musk's net worth has taken a $15.3 billion hit after the Tesla CEO announced he was to form a new political party. The news sent ripples through financial markets and spooked investors concerned about Musk's political ambitions and possible implications for Tesla's brand and business operations.

"When it comes to bankrupting our country with waste & graft, we live in a one-party system, not a democracy," Musk said in the announcement.

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.