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 shares sank Monday after CEO Elon Musk announced he would form a new political party in an escalation of his feud with President Donald Trump.

Dan Ives, an analyst with Wedbush, wrote that Musk's continued push into politics is "exactly the opposite direction" investors want to see.