A Twitter spat erupted between Tesla and SpaceX CEO Elon Musk and the American politician Bernie Sanders after the latter Tweeted about tax policy on super-wealthy people, CNBC reported. Bernie Sanders posted, Saturday, on Twitter: “We must demand that the extremely wealthy pay their fair share. Period.” Elon Musk, who is one of the world’s richest men, replied with a comment reading: “I keep forgetting that you’re still alive.” The ...