Kalshi sues Montana over prediction market crackdown

Summary

Kalshi has filed a federal lawsuit in the US District Court for the District of Montana after the state Gambling Control Division issued a second cease-and-desist ordering the exchange to stop offering event contracts to Montana residents. The company says the state agreed in April 2025 to pause enforcement while related litigation in Nevada proceeded and that the latest letter improperly disregards that agreement.

The core dispute is jurisdictional: Kalshi argues its event contracts are derivatives governed exclusively by federal law and the Commodity Futures Trading Commission (CFTC), because the platform operates as a designated contract market under the Commodity Exchange Act. Montana maintains the contracts meet the state definition of gambling and cited statutes banning risking money on chance. The state warned it could pursue civil or criminal enforcement if Kalshi continued serving Montana users.

Kalshi seeks declaratory and injunctive relief to bar Montana from applying its gambling laws to Kalshi’s federally regulated exchange, warning that state-by-state enforcement would fragment regulation — exactly what federal oversight of derivatives was supposed to prevent. The filing points to recent court actions (Third Circuit ruling on New Jersey, an Arizona temporary restraining order and Nevada stays) that have tended to favour federal pre-emption of state gambling laws in similar cases.

Key Points

Kalshi sued Montana in federal court after a second cease-and-desist demanded it stop offering event contracts to state residents.
The company says Montana previously agreed to hold off enforcement in April 2025 while Nevada litigation continued; Kalshi claims the new letter breaches that agreement.
Kalshi’s legal theory: event contracts are derivatives under the Commodity Exchange Act and fall under the exclusive jurisdiction of the CFTC.
Montana contends the contracts are gambling under state law and threatened civil and criminal enforcement.
Kalshi seeks declaratory and injunctive relief to prevent application of state gambling statutes to its federally regulated exchange.
Recent federal rulings (Third Circuit on New Jersey, Arizona TRO, Nevada stays) are cited as supportive of federal pre-emption and may influence Montana’s case.
Broader implication: a ruling for states could create a fragmented patchwork of regulation; a ruling for Kalshi would reinforce federal control of event-contract markets.

Why should I read this?

Short and sweet: if you follow prediction markets, iGaming or financial-regulation stuff, this one matters. The outcome could decide whether states can shut down exchanges or whether the CFTC keeps control — and that shapes where firms can operate and how much legal hassle they’ll face. Worth a quick read if you don’t want surprises landing on your desk later.

Author style

Punchy: this case isn’t just another lawsuit — it could determine whether event contracts are treated as gambling or financial instruments. If you work in exchanges, compliance, or betting, the rulings here will affect business models, licensing and enforcement risk. Read the legal bits if you need to act on it.