CFTC Sues Wisconsin Over Prediction Market Ban
The CFTC sued Wisconsin on April 28, 2026, defending Kalshi and Polymarket against state gambling law enforcement.Wisconsin AG Josh Kaul filed 3 lawsuits on April 23 targeting platforms earning over $1 billion annually from sports contracts.The CFTC has now sued 5 states in April 2026, with the conflict expected to reach the U.S. Supreme Court. CFTC Sues Wisconsin to Stop State From Closing Wisconsin Attorney General Josh Kaul filed three civil lawsuits in Dane County Circuit Court on April 23 against Kalshi, Polymarket, Foris Dax Markets/ Crypto.com, and affiliated companies, including Robinhood and Coinbase. The state argues that sports-outcome contracts offered by these platforms constitute illegal sports betting under Wisconsin law, specifically Wis. Stat. 945.03(1m), a Class I felony. Kaul framed the dispute plainly. “Thinly disguising unlawful conduct doesn‘t make it lawful,” he said. “These companies’ alleged facilitation of sports betting in Wisconsin should be shut down.” The CFTC fired back days later. Chairman Michael Selig said states cannot override Congress. “Our message to Wisconsin is the same as to New York, Arizona, and others: if you interfere with the operation of federal law in regulating financial markets, we will sue you,” he remarked. At the center of the fight is whether event contracts, financial