Elon Musk lashed out at George Soros after the billionaire liquidated his stake in Tesla, smearing the 92-year-old in a personal attack. Fresh from picking a new CEO for his financially troubled Twitter acquisition, the entrepreneur compared the Hungarian-born Holocaust survivor to the nemesis of Marvel’s popular band of mutant protagonists. “Soros reminds me of Magneto,” he wrote on Monday, claiming the philanthropist uses his considerable wealth to the detriment of mankind. In the comics, the X-Men villain escapes a Nazi death camp to pursue his own radical form of supremacy in which mutants gifted with superpowers like himself are...