Elon Musk's empire isn't exactly crumbling, but it looks increasingly vulnerable as his falling out with President Trump intensifies. Why it matters: The world's richest person enjoyed ballooning wealth in the early days of his alliance with the president,

Tesla’s stock price has plunged in response to Elon Musk’s announcement of a new political party and his latest attacks on President Donald Trump. Investors are once again concerned about Musk’s focus as the company’s CEO announced over the weekend that he has launched the America Party.