--- title: "Ohio Governor Warns Lawsuits Loom for Prediction Market Operators Over Cease-and-Desist Orders" description: "Attorney General Andy Wilson is preparing to file lawsuits after 10 platforms, including Polymarket, Robinhood, and Coinbase, were ordered to halt sports event contracts." url: https://basisdesk.news/news/ohio-governor-lawsuits-prediction-markets-polymarket published: 2026-10-22T00:11:17.390Z modified: 2026-10-22T00:11:17.390Z section: Regulation & Policy author: Basis Desk Newsroom (AI-generated, source-verified) sentiment: bearish tickers: [] tags: [prediction-markets, cftc, ohio, polymarket, robinhood, coinbase, derivatives] license: Quote with attribution to Basis Desk (basisdesk.news). Not financial advice. --- # Ohio Governor Warns Lawsuits Loom for Prediction Market Operators Over Cease-and-Desist Orders Attorney General Andy Wilson is preparing to file lawsuits after 10 platforms, including Polymarket, Robinhood, and Coinbase, were ordered to halt sports event contracts. ## At a glance - **What happened:** Ohio Gov. Mike DeWine announced state lawsuits will be filed against prediction market operators ignoring cease-and-desist notices. - **Why it matters:** The crackdown intensifies the legal conflict between state gambling regulators and platforms claiming federal CFTC preemption for event contracts. - **Who is affected:** Ten prediction market and trading platforms operating in Ohio, including Polymarket, Robinhood, and Coinbase. - **Takes effect:** 2026-10-16 - **What's next:** Ohio Attorney General Andy Wilson filing enforcement lawsuits, and court proceedings regarding Polymarket's injunction request. - **Status:** enforcement - **Primary source:** [UPDATE: Ohio Governor Says Action Forthcoming Against Prediction Market Operators](https://www.sportsbettingdime.com/news/industry/ohio-governor-says-action-forthcoming-against-prediction-market-operators) — sportsbettingdime.com ## Key points - Ohio Gov. Mike DeWine announced state lawsuits will be filed against prediction market operators flouting cease-and-desist orders [1]. - The Ohio Casino Control Commission ordered 10 operators, including Polymarket, Coinbase, and Robinhood, to halt sports event contracts by Oct. 16 [1]. - Polymarket sued Ohio regulators, arguing state gambling rules violate the Commerce Clause and are preempted by the Commodity Exchange Act [1]. ## Editorial remark - **Context:** The dispute centers on a jurisdictional conflict between state gaming authorities and federally regulated derivatives platforms following a Sixth Circuit ruling in Ohio's favor regarding Kalshi [1]. - **Impact:** Retail prediction platforms face criminal and civil exposure under Ohio gaming statutes, challenging business models built around nationwide liquidity and federal CFTC oversight [1]. - **Watch:** Filings from Ohio Attorney General Andy Wilson and federal court rulings on Polymarket's request for preliminary and permanent injunctions [1]. Ohio Governor Mike DeWine stated that the state will take enforcement action against prediction market platforms that have refused to obey cease-and-desist orders issued by state regulators [1]. Speaking to reporters, DeWine indicated that Ohio Attorney General Andy Wilson is preparing to initiate lawsuits against firms continuing to offer sports event contracts inside the state, explaining that regulatory demands require direct judicial enforcement [1]. The move follows orders sent in late September by the Ohio Casino Control Commission (OCCC) mandating 10 firms to halt unlicensed sports-related event contracts by Friday, Oct. 16 [1]. The OCCC issued these notices to 10 entities: Underdog, Gemini Titan, Coinbase, Prophet X, Novig, Robinhood, Polymarket, Plus500, Moomoo, and Webull [1]. Regulators grounded their enforcement in a Sixth Circuit Court of Appeals decision upholding Ohio’s authority to apply state gaming statutes against prediction platform Kalshi, which was excluded from the new round of letters due to separate, ongoing litigation [1]. According to an OCCC spokesperson, one operator has complied with the mandate, while the commission remains in talks with several others [1]. Robinhood defended its offerings by stating its event contracts are regulated at the federal tier by the Commodity Futures Trading Commission through a registered derivatives subsidiary [1]. ## Polymarket Sues Regulators in Federal Dispute Polymarket responded to the OCCC's enforcement letter by filing a federal lawsuit against the commission and Wilson, becoming one of two operators actively litigating the matter [1]. In its complaint, Polymarket argued that the OCCC's demands breach the Interstate Commerce Clause of the U.S. Constitution and are preempted by the federal Commodity Exchange Act [1]. The company noted that Ohio treats unlicensed sports gaming as a felony while restricting permits primarily to operators maintaining physical in-state infrastructure [1]. Polymarket contends that conforming to Ohio's licensing framework would require partitioning its services exclusively for in-state users, unlawfully fragmenting interstate trade [1]. The company is seeking preliminary and permanent injunctions to block the state from enforcing its cease-and-desist demand [1]. ## FAQ **Which prediction market platforms received Ohio cease-and-desist letters?** The Ohio Casino Control Commission issued notices to 10 operators: Underdog, Gemini Titan, Coinbase, Prophet X, Novig, Robinhood, Polymarket, Plus500, Moomoo, and Webull. **Why did Polymarket sue Ohio regulators?** Polymarket argues that Ohio's licensing mandates violate the Commerce Clause of the U.S. Constitution and are preempted at the federal level by the Commodity Exchange Act. ## Sources 1. [UPDATE: Ohio Governor Says Action Forthcoming Against Prediction Market Operators](https://www.sportsbettingdime.com/news/industry/ohio-governor-says-action-forthcoming-against-prediction-market-operators) — sportsbettingdime.com, 2026-10-20 --- Basis Desk Newsroom · AI-generated, source-verified · https://basisdesk.news/about/how-we-use-ai