Polymarket sues Ohio over sports betting restrictions, seeks injunction against enforcement

Polymarket has challenged Ohio’s sports betting regulations in federal court , arguing that the state’s licensing requirements discriminate against interstate commerce and conflict with the Commodity Exchange Act (CEA). The lawsuit follows a Sept. 25 federal appeals court ruling against rival prediction market Kalshi . The Sixth Circuit unanimously determined that Kalshi’s sports event contracts were not swaps under the CEA and that federal law would not override Ohio and Tennessee’s gambling regulations even if they qualified as swaps.