The Roman salute is conditionally allowed in Italy and outright banned in Germany. German chancellor Olaf Scholz responded to Musk's gesture by saying, "We have the freedom of speech in Europe and in Germany," he said, "what we do not accept is if this is supporting extreme right positions."

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!