Baltimore Sues Kalshi and Polymarket: What the Prediction-Market Sports-Betting Battle Means for US Crypto Investors
On August 13, the City of Baltimore sued prediction-market platforms Kalshi and Polymarket, opening what legal observers are calling the first case in which a US city government has taken prediction markets to court. The lawsuit pulls three of the biggest names in American retail investing into the fight, because Kalshi runs event-contract offerings through Coinbase, Robinhood, and Webull. For US crypto investors, the case matters far beyond one city: it will help decide whether sports-style event contracts belong under federal CFTC oversight or under a patchwork of state gaming laws. ...