Billionaire Elon Musk said Saturday he is forming a third political party, after a dramatic falling out with Donald Trump, indicating he will make good on threats he made if the president’s domestic policy bill became law.

Elon Musk declared the launch of his new political party on Saturday, a project he has repeatedly floated in the weeks since his explosive breakup with President Donald Trump — but provided no details as to how he planned to jump through the hoops necessary to establish a viable alternative.