MILWAUKEE, WI—A routine rally gesture detonated into a national fad after Donald Trump mistook Dwayne “The Rock” Johnson’s arm raise for a classified WWE cue. The former president leapt up, shouted, “I know this one from the old days!” and unleashed exaggerated hip gyrations and aggressive dabs, which witnesses instantly christened “The Presidential Dab.” Emergency rooms now report a spike in politically motivated dance injuries. “I’ve never seen anything like it,” said Margaret Henley, 67, of Kenosha. “The Rock waves, Trump starts this weird dance, and then everyone copies him. My grandson says I went viral on TikTok. I still don’t know what a TikTok is.” Ex-aide Jennifer Walsh said Trump insisted Johnson signaled “the old Milwaukee Mash.” “We told him it was just crowd work,” she said. “By the time we realized, half the arena was dabbing.” Johnson’s team clarified he was “acknowledging enthusiasm,” not launching a civic choreography. Within hours, remixes and regional Dab-Offs erupted in all 50 states. Trump announced a 12-city “Presidential Dab-Off Tour” promising “tremendous political choreography.” A Northwestern scholar called it “new civic engagement,” while mayors add dance breaks to stump speeches. America, meet policy by cardio.