Polymarket Takes Ohio to Federal Court, Citing New CFTC Rules After Kalshi’s Appeals Loss

Polymarket US has sued Ohio’s attorney general and casino regulators in federal court, arguing that CFTC rulemaking from this month undercuts a September appeals ruling against Kalshi. The exchange filed its complaint on Oct. 16 , Ohio’s deadline, in Ohio’s Southern District, where Judge Douglas Cole has the case . It names Attorney General Andy Wilson , the Ohio Casino Control Commission ‘s seven members and interim executive director Andromeda Morrison . According to the complaint, the commission’s Oct. 2 letter told Polymarket US to “immediately cease and desist from offering” sports event contracts without a state license.