Polymarket,ablockchain-basedpredictionmarket,isfacingscrutinyoverallegedwashtradingonitsplatform.Asthe2024U.S.presidentialelectionnears,PolymarkethasdrawnsignificantattentionwithitsoddsfavoringDonaldTrump,whocurrentlyholdsa67%chanceofwinningoverKamalaHarris,accordingtotheplatform’smetrics.