After falling out with President Trump, the billionaire plans to form a new party. He built the $910 bln carmaker through long-shot efforts promising huge payoffs, only for hard-won gains to erode. His latest distracting gamble coincides with shrinking financial rewards.

Launching new cars no longer seems to amuse the world's richest man. For the good of the company he built, it’s time for him to hand over the keys and step aside as CEO.