In his videos, George Makihara appears to have a lucrative side hustle making bets on Polymarket. In January, the college student posted a video that showed him winning $100,000 on a wager that President Trump would publicly say the word “McDonald’s” that month. The bet was one of 145 that Makihara appeared to place on Polymarket’s website between January and mid-May, based on his videos—bets adding up to almost $410,000.