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.

The announcement from Musk comes a day after Trump signed a tax-cut and spending bill into law, which the billionaire had fiercely opposed.

Musk would need to overcome many hurdles to establish a third party. Similar efforts, including the late billionaire Ross Perot’s, haven’t lasted.