According to the data provided by the decentralized prediction market platform Polymarket, the winning probability for US Vice President Kamala Harris in the impending presidential election has risen to 49%. This outcome indicates that the contest between Harris and her predecessor, former President Donald Trump, is exceedingly tight, with their support levels in equilibrium. As a prominent decentralized prediction market platform, Polymarket utilizes the wagers placed by its participants to forecast the results of future events. This prediction for the US presidential election showcases the delicate shifts in the current electoral landscape.