In an escalation of Elon Musk’s fractured relationship with President Donald Trump and his Republican allies, the Tesla CEO has floated the idea of starting a new political party to rival the two-party system.

Still, Musk remains the richest person on the planet with an estimated total net worth of $342 billion as of Sunday, June 8, according to their index. He is followed by Mark Zuckerberg with $246 billion; Jeff Bezos with $234 billion; Larry Ellison with $196 billion; and Bill Gates with $176 billion.