Sen. Mark Kelly, a decorated Navy veteran as well as a former astronaut, finished a visit to Ukraine. Elon Musk hit back against Kelley's public opinions on the matter.

There’s no need for a sticker saying ‘I Bought This Before Elon Went Crazy’ on a Tesla for these owners, who think the car is ...

The U.S. stock market fell further following President Donald Trump’s latest escalation in his trade war, briefly pulling Wall Street 10% below its record set last month.