Elon Musk was visibly bursting with excitement after President Donald Trump’s inauguration. At a celebratory rally on Monday at Capitol One Arena in Washington, he pumped his fist in the air and bellowed a “Yes!” to the raucous crowd. But another gesture soon after has sent observers questioning whether Musk was expressing just joy, or something more insidious. [time-brightcove not-tgx=”true”] “I just want to say thank you for making it happen,” the Tesla and SpaceX CEO and X owner told the audience of Trump supporters.