Key PointsKentucky has become the ninth state facing legal action from the CFTC in disputes over prediction market regulation.The state previously filed suit against Kalshi, Polymarket, Coinbase, Robinhood, and Webull, alleging they operate unlicensed gambling operations.Federal regulators assert they hold exclusive jurisdiction over these markets, arguing Kentucky has overreached its authority.A 14.25% excise tax on transaction fees imposed by Kentucky effectively prevents prediction platforms from operating within state borders, according to the CFTC.Since assuming his position in December, CFTC Chair Mike Selig has prioritized creating comprehensive federal regulations for the prediction market sector.The Commodity Futures Trading Commission has initiated federal legal proceedings against Kentucky, attempting to prevent the state from applying its regulatory framework to prediction market operators.As I’ve consistently pledged, the @CFTC is firmly committed to maintaining its exclusive jurisdiction over prediction markets, and today’s lawsuit against Kentucky is yet another example of the Commission protecting its federal authority.More below https://t.co/u1zwCP0Mb6— Mike Selig (@ChairmanSelig) June 23, 2026Filed Tuesday in the U.S. District Court for the Eastern District of Kentucky, the complaint names Governor Andrew Beshear, Attorney General Russell Coleman, and the Kentucky Horse Racing and Gaming Corporation as respondents.This federal action follows Kentucky’s own legal offensive launched the previous week. The state targeted prediction platforms Kalshi and Polymarket, as well as their associated partners Coinbase, Robinhood, and Webull, accusing them of conducting business without proper state gaming authorization.The state’s complaint further asserted that these platforms fail to provide adequate support systems or resources for users experiencing gambling-related issues, violating Kentucky’s consumer protection requirements.Federal Regulator Asserts Primary JurisdictionThe CFTC mounted a forceful defense of its regulatory territory. The agency maintains that Kalshi and Polymarket function as designated contract markets under federal oversight. According to the commission, their event-based contracts qualify as “swaps” within the framework of federal commodities regulations.The federal agency further contended that Coinbase, Robinhood, and Webull hold proper registration as futures commission merchants, granting them legal authority to collaborate with prediction market platforms.“Kentucky represents yet another state seeking to eliminate federally-regulated event contracts,” stated CFTC Chair Mike Selig.The commission took particular issue with Kentucky’s legislation imposing a 14.25% excise tax on platform transaction fees. According to the CFTC, this levy “effectively renders it impossible for prediction markets to conduct operations in Kentucky.”Since 2023, the Kentucky Horse Racing and Gaming Corporation has held regulatory power over sports wagering, forming the foundation of the state’s legal position.Federal Offensive Expands Across Multiple StatesWith Kentucky, the CFTC has now filed lawsuits in nine different states. Prior legal actions targeted Wisconsin, Illinois, Arizona, Connecticut, New York, New Mexico, Minnesota, and Rhode Island.Across all these legal challenges, the commission advances a consistent position: federal legislation takes precedence in governing prediction markets, and state-level regulations cannot supersede that authority.Mere weeks ago, the CFTC launched comparable litigation against New Mexico following that state’s effort to enforce its gaming statutes against Kalshi.In May, President Donald Trump emphasized the “critical importance” of preserving CFTC authority over prediction market oversight.Donald Trump Jr., the president’s son, maintains financial interests in Polymarket and holds advisory positions with both Polymarket and Kalshi.Chair Selig has devoted considerable effort to establishing comprehensive industry regulations since beginning his tenure in December. His leadership has produced proposed guidelines that would permit widespread sports betting through prediction markets, while restricting wagers connected to terrorism or political violence.Platforms such as Kalshi and Polymarket experienced explosive growth throughout the 2024 election season and currently facilitate wagering on diverse events spanning political contests to athletic competitions.The post CFTC Takes Kentucky to Federal Court Over Prediction Market Crackdown appeared first on Blockonomi.