The Commodity Futures Trading Commission (CFTC) today filed a federal lawsuit against the State of Wisconsin, escalating a legal clash over who regulates prediction markets in the United States.
According to the official release, the complaint, filed in the Eastern District of Wisconsin, seeks to block the state from enforcing gambling laws against platforms offering event-based contracts. The agency argues that Congress granted it exclusive authority over such markets under federal law.
Dispute triggered by state action against platforms
The lawsuit follows civil enforcement actions filed by Wisconsin on April 23 against several platforms, including Kalshi, Polymarket, Crypto.com, Robinhood, and Coinbase.
State authorities alleged that these firms were facilitating illegal sports betting under Wisconsin law and sought to halt their operations within the state. The federal regulator, however, contends that these platforms operate within federally supervised markets and that state-level enforcement disrupts a national regulatory framework.
Ryan VanGrack, Coinbase VP of Legal and Head of Global Litigation, commented on the development, stating, “The CFTC’s lawsuits, including its recent actions in New York and Wisconsin, represent a definitive line in the sand. By moving to block state encroachment, the Commission has sent an unmistakable signal: the era of jurisdictional ambiguity is over. Federal law is not a suggestion—it is the exclusive authority governing these markets.”
Federal law vs state gambling rules
At the center of the case is whether event contracts, financial instruments tied to the outcome of real-world events, fall under gambling laws or derivatives regulation.
The CFTC maintains that such contracts qualify as swaps under the Commodity Exchange Act and are therefore subject to exclusive federal oversight. It argues that allowing states to classify them as bets would create conflicts with federal law.
Wisconsin officials, including Governor Tony Evers and Attorney General Josh Kaul, have taken the position that certain event contracts, particularly those tied to sports outcomes, constitute illegal gambling under state statutes.
CFTC seeks injunction to block enforcement
The federal complaint requests declaratory and injunctive relief to prevent Wisconsin from applying its gambling laws to federally regulated exchanges. According to the filing, continued state enforcement would “interfere with the operation of federal law” and undermine the agency’s ability to regulate derivatives markets consistently across the country.
The CFTC also argues that compliance with both state and federal requirements would be impractical for exchanges, especially given federal rules requiring equal access to markets nationwide.
Broader pushback against state-level actions
The Wisconsin case is part of a broader legal effort by the CFTC to push back against state attempts to regulate prediction markets. The agency has recently taken similar action against other states, including New York, and has supported related cases in federal courts.
In one recent development, a federal court in Arizona temporarily blocked a state-level criminal case targeting a CFTC-regulated platform, signaling early judicial scrutiny of such conflicts.
What’s at stake
The outcome of the case could shape how prediction markets operate in the U.S., particularly as these platforms expand into politically and economically sensitive event-based trading.
If the court sides with the CFTC, it would reinforce a single federal framework for derivatives markets, limiting states’ ability to intervene. A ruling in favor of Wisconsin, however, could open the door to a fragmented regulatory environment where state laws play a larger role.
For now, the case underscores a growing jurisdictional battle over how emerging financial products are classified, and who gets to regulate them.
Also Read: Polymarket Moves to Regain U.S. Access With CFTC Approval Push
