While the initial testing will use Tesla's own fleet of cars, regular customers may be able to add their cars to the ride-hailing fleet next year, Musk says.

It’s hard to fault a CEO who grows a company beyond $1 trillion in value. Elon Musk managed the feat by upending the automotive market with Tesla’s electric vehicles and extended its lead with broader battery power.

Elon Musk, the genius billionaire behind Tesla, SpaceX, and now the Department of Government Efficiency (D.O.G.E), has vowed to cut wasteful spending in Washington under his “best friend” President Donald Trump’s administration.

Elon Musk's appearance at a Trump rally this afternoon is garnering significant attention online over a one-armed gesture.

Elon Musk could be "pulling Trump down," as polls show his popularity among the American population is plummeting, according to CNN analyst Harry Enten. Newsweek reached out to the White House and Musk's companies,