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CFTC sues Wisconsin in agency's legal campaign defending prediction markets authority

The U.S. Commodity Futures Trading Commission added Wisconsin to the list of states it's sued over event-contract jurisdiction, most recently New York.

By Jesse Hamilton|Edited by Nikhilesh De Apr 28, 2026, 6:22 p.m. Make preferred on _Chairman Mike Selig's U.S. Commodity Futures Trading Commission has sued Wisconsin in a prediction markets standoff. (Jesse Hamilton/CoinDesk)

What to know:

• Wisconsin has become the latest state sued by the U.S. Commodity Futures Trading Commission in a fight over whether states have jurisdiction over prediction markets as gambling platforms or whether the CFTC has solo authority as the federal regulator of derivatives.
• Last week, Wisconsin sued several of the businesses, including Kalshi, Polymarket and Coinbase, and days later, the CFTC is suing the state in federal court.

Wisconsin has joined the growing number of U.S. states being sued by the Commodity Futures Trading Commission as that agency insists on its jurisdiction over prediction markets trading at firms such as Kalshi and Crypto.com.

Several states have gone after those businesses, accusing them of violating state gaming laws via the betting taking place on the growing platforms, but CFTC Chairman Mike Selig has led a legal pushback against states including New York, Arizona, Illinois and Connecticut. He's argued that the derivatives regulator, which he leads as the sole member of what's meant to be a five-member commission, has "exclusive jurisdiction" over the trading of event contracts that he argues are an emerging form of the same kinds of derivatives activity long handled by the CFTC.

Last week, Wisconsin sued Kalshi, Coinbase, Polymarket, Robinhood and Crypto.com for running unlicensed gambling operations in the state — echoing the claims made against the industry elsewhere.

Selig has now responded in the U.S. District Court for the Eastern District of Wisconsin, said he's trying to send a message: "If you interfere with the operation of federal law in regulating financial markets, we will sue you."

Also last week, New York sued Coinbase and Gemini over their prediction markets businesses, and days later, the CFTC responded with its own lawsuit against the state.

Arizona has been pursuing a criminal case against Kalshi, but a court there paused the prosecution earlier this month, with the judge arguing that the federal agency is likely to be successful making its case that the U.S. law will preempt state gambling laws.

Mike SeligPrediction MarketsKalshiPolymarketMore For You

Polymarket reportedly seeking CFTC approval to reopen main exchange to U.S. traders

By Francisco Rodrigues|Edited by Nikhilesh De7 hours agoIf approved, the move would help Polymarket compete with Kalshi in the U.S., and bring more event-trading activity under CFTC regulatory oversight.

What to know:

• Polymarket is seeking CFTC approval to lift the ban on U.S. users from its main overseas prediction market,.
• If approved, the move would help Polymarket compete with Kalshi in the U.S. and bring more event-trading activity under CFTC regulatory oversight.
• The CFTC must vote on the matter,...

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