The bets, coming with the rise in Trump's odds on Polymarket, have drawn scrutiny because they diverge sharply from opinion polls. Polls have indicated a neck-and-neck race between Vice President Kamala Harris and former President Donald Trump. On Polymarket, however, Trump's chances have soared to 63% versus Harris's 37%. Odds on other prediction markets, such as Kalshi and PredictIt, have followed suit.