Massachusetts AG Sues Online Prediction Market for Illegal and Unsafe Sports Wagering Operations

Oct 3, 2025

Massachusetts Attorney General Andrea Joy Campbell filed a lawsuit in Suffolk Superior Court against KalshiEX LLC (Kalshi) -- a self-described online “prediction market” -- for promoting and accepting online sports wagers from Massachusetts customers without following the many Massachusetts laws that govern sports gaming, including licensure by the Massachusetts Gaming Commission (MGC).  “Sports wagering comes with significant risk of addiction and financial loss and must be strict
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