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States / Wisconsin

Legal status · as of Oct 15, 2026

Are prediction markets legal in Wisconsin?

In court

Wisconsin's attorney general sued five operators in April 2026. The CFTC's countersuit was denied a preliminary injunction in July. The Ho-Chunk Nation's IGRA claims against Kalshi are proceeding, with an interlocutory appeal certified in September.

State actions

Regulator orders, lawsuits, rulings and laws, newest first.

DateActionWhat happenedSources
Sep 11, 2026OtherFederal court certifies interlocutory appeal of tribal IGRA claims (Ho-Chunk Nation v. Kalshi). (Kalshi)Paul Hastings tracker · Gambling Insider (May 2026 IGRA ruling)
Jul 29, 2026OtherFederal judge denies the CFTC's preliminary injunction.Covers timeline
May 14, 2026OtherGov. Evers signs an executive order banning insider trading on prediction markets.Covers timeline
Apr 28, 2026LawsuitCFTC sues Wisconsin (E.D. Wis.).CFTC Release 9220-26 primary
Apr 24, 2026LawsuitAG Josh Kaul files three Dane County complaints seeking declaratory and injunctive relief. (Kalshi, Polymarket, Crypto.com, Robinhood, Coinbase)The Block

Cases involving Wisconsin

Select a case for its full history and sources, or see the legal tracker.

CaseStatusLast actionSources
CFTC v. Wisconsin
U.S. Court of Appeals for the Seventh Circuit; U.S. District Court for the Eastern District of Wisconsin		PI denied; appeals pending in Seventh CircuitAug 14, 2026
Kalshi's appeal docketed (No. 26-2675); the U.S./CFTC appeal (No. 26-2636) was docketed Aug. 10 with a motion to expedite.		CFTC press release 9220-26 (suit vs. Wisconsin) primary · Cert petition (PDF), No. 26-299 primary · Cert petition (PDF), No. 26-338 primary · Seventh Circuit docket No. 26-2636 (Justia) primary · Seventh Circuit docket No. 26-2675 (Justia) primary · Tracker: Mick Bransfield prediction-market litigation tracker

Prediction markets in Wisconsin: questions

Are prediction markets legal in Wisconsin?

In court. Wisconsin's attorney general sued five operators in April 2026. The CFTC's countersuit was denied a preliminary injunction in July. The Ho-Chunk Nation's IGRA claims against Kalshi are proceeding, with an interlocutory appeal certified in September. Exchanges registered with the CFTC, including Kalshi, say federal law lets them offer event contracts in every state; that question is being fought in court. This summarizes public actions and is not legal advice.

What is the latest prediction market action in Wisconsin?

Sep 11, 2026: Federal court certifies interlocutory appeal of tribal IGRA claims (Ho-Chunk Nation v. Kalshi).

Is there a lawsuit over prediction markets in Wisconsin?

Yes. CFTC v. Wisconsin (U.S. Court of Appeals for the Seventh Circuit; U.S. District Court for the Eastern District of Wisconsin): PI denied; appeals pending in Seventh Circuit.

This page reports court, regulator and legislative actions with links to the filings and coverage. It is not legal advice. The tracker is re-checked every Monday and Thursday. All states · Legal tracker