Elon Musk embraces 'wartime CEO' mode, signaling a return to round-the-clock work at Tesla. Musk's intense work ethic resurfaces amid crucial developments, as he plans to sleep in the office again.

Tech mogul Elon Musk changed his cellphone number and stopped returning Mike Johnson's texts after throwing a titanic fit about the costs included in Republicans' massive tax-and-spending bill ...

When it comes to scandal, Musk is an amateur compared with Trump. An interesting thing about Musk’s party: He can start a party. He can lead it. And he certainly can afford to fund it.

Tesla CEO Elon Musk rebuffed analyst Dan Ives' suggestion that Tesla's board establish guardrails for his political activism after he said he'll launch a new political party.

Elon Musk and Donald Trump’s bromance was bound to implode. Like all great love stories, the friendship between the Tesla CEO and the US president began passionately. “I love @realDonaldTrump ...