The Commodity Futures Trading Commission sued Wisconsin, challenging the state’s civil action against major prediction-market platforms and asking a federal court to affirm that the Commodity Exchange Act overrides conflicting state gambling laws. The filing extends a broader CFTC campaign aimed at protecting federally regulated event-contract markets from state-level enforcement.
The lawsuit matters because the outcome could determine whether U.S. prediction markets operate under a unified federal framework or a fragmented state-by-state regime. For platforms, traders and institutional users, that distinction affects market access, compliance costs, liquidity depth and counterparty risk.
CFTC Pushes a National Jurisdictional Claim
The CFTC framed its Wisconsin filing around federal preemption, arguing that event contracts fall within its exclusive jurisdiction under the Commodity Exchange Act. The agency is seeking declaratory judgments and permanent injunctions that would prevent states from enforcing gambling laws against CFTC-regulated entities.
Wisconsin is the latest state drawn into the dispute. The commission filed related lawsuits against Arizona, Connecticut and Illinois on April 2, followed by an action against New York on April 24. It also filed an amicus brief in Massachusetts on April 24 and coordinated with the Department of Justice on what the agencies described as the first prediction-market insider-trading prosecution.
CFTC Chairman Michael Selig cast the litigation as a defense of federal authority. “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 said.
The agency’s posture is clear: it wants courts to draw a hard boundary between federally supervised event contracts and state gambling enforcement.
States Push Back as Platforms Watch Liquidity Risk
Wisconsin Attorney General Josh Kaul described the CFTC lawsuit as a “power grab” and defended the state’s case as a consumer-protection action. His suit accused platforms including Kalshi, Polymarket, Crypto.com, Robinhood and Coinbase of facilitating illegal sports betting by collecting fees.
Kaul also argued that a bipartisan group of state attorneys general opposes the federal approach, framing the dispute as a fight over states’ ability to regulate gambling activity within their borders.
Platform counsel have welcomed the CFTC’s intervention. Ryan VanGrack, Coinbase’s vice president of legal and head of litigation, said the commission’s filings sent “an unmistakable signal” that “the era of jurisdictional ambiguity is over.”
If courts accept the CFTC’s preemption theory, federally registered prediction-market platforms could avoid a patchwork of state restrictions. That would reduce compliance fragmentation and help preserve national liquidity.
If courts limit the CFTC’s reach, platforms may face divergent state regimes, higher legal costs and fragmented access. Liquidity could split across venues and jurisdictions, increasing slippage and complicating event-driven or delta-neutral strategies.
The federal cases will now shape the next phase of U.S. prediction-market regulation. Their resolution will determine whether event contracts consolidate under CFTC supervision or remain exposed to state-by-state enforcement pressure.