What was enjoined, precisely
The law is Minnesota SF 3432. Reporting from the 2 July hearing, Courthouse News describes it as making it a felony to create, operate, manage or control a prediction-market platform — “effectively forcing these exchanges to exit the state or face charges” — and identifies it as the nation's first outright ban on the platforms (Courthouse News, 2026-07-02). Crypto Briefing reports it was signed by Governor Tim Walz on 18 May 2026 and that operating or advertising a platform would have been a felony carrying up to five years in prison and a $10,000 fine (Crypto Briefing, 2026-07-27).
Minnesota describes its own statute more narrowly than “prediction markets are banned.” In the Attorney General's own words, the state “passed a law making it a felony to offer or facilitate certain forms of event contracts – those involving sports, political, cultural, entertainment, legal, and catastrophic events – while leaving untouched commodity futures and other contracts used to manage financial, economic, or commercial risk” (Office of the Minnesota Attorney General, 2026-06-18). Courthouse News records the state making the same point at the hearing: agricultural risk-hedging transactions and standard securities and commodities transactions were not restricted by the ban. The federal side disputed that the carve-out worked: the CFTC said the law reached CFTC-regulated markets more broadly than any other state law it had sued over, “including criminalizing weather-related event contracts” (CFTC, press release 9233-26, 2026-05-19).
The 1 August date the order pre-empted
SF 3432 was due to commence on 1 August 2026, alongside a batch of other new Minnesota laws taking effect the same day (FOX 9, 2026-07-27). Every filing in the case was timed against that date: the CFTC said on 19 May that it was “seeking a preliminary injunction to stop the law from going into effect on August 1, 2026” (CFTC, 2026-05-19), and the Attorney General's office described the three motions as seeking “to temporarily prevent the statute from taking effect on August 1, while the full scope of the lawsuit plays out” (Minnesota Attorney General, 2026-06-18). The order landed on 27 July — four days before the deadline it was aimed at.
The parties: CFTC, Kalshi, Polymarket — and the State
Three separate challengers moved against the same statute. The CFTCfiled the day after the bill was signed, framing the law as an intrusion on federal jurisdiction over derivatives; its chairman, Michael S. Selig, said the law “turns lawful operators and participants in prediction markets into felons overnight” (CFTC, 2026-05-19). Kalshi and Polymarketfiled their own suits in the following weeks, arguing their event contracts are “swaps” under the federal Commodity Exchange Act and that a state cannot regulate agreements traded on a designated contract market; Polymarket also raised a First Amendment argument about the ban on advertising, which the judge noted had likely not been argued in other prediction-market challenges (Courthouse News, 2026-07-02).
Minnesotaargued it was exercising its historic police powers over gambling, and that the platforms could comply by geo-blocking the state. After the ruling, Attorney General Keith Ellison said the state “respectfully disagree[s] with the Court's determination that the proper ‘status quo’ to maintain is one that allows predatory gambling apps to proliferate,” while acknowledging that “the Court has been presented with complex legal issues that are difficult to decide quickly and without a fully developed record,” and said the state would continue to litigate (FOX 9 and ABC 6 News, 2026-07-27). The three motions were argued together on 2 July 2026 before U.S. District Judge Katherine Menendez, who took them under advisement (Courthouse News, 2026-07-02).
The multi-state picture this sits inside
Minnesota is one front of many, and the results have not all run the same way. In its 19 May release the CFTC said a federal court in Arizona had recently issued a preliminary injunction blocking that state from using its gambling laws to criminally prosecute prediction-market operators, and that the Commission had also sued Connecticut, Illinois and New York and filed amicus briefs in the Sixth and Ninth Circuits and the Massachusetts Supreme Judicial Court (CFTC, 2026-05-19).
The operators are litigating on their own account too. Kalshi sued the Ohio Casino Control Commission in state court to block administrative proceedings seeking a $5 million civil penalty, after the commission accused it of offering unlicensed sports betting; Kalshi argues the proceedings improperly target federally regulated event contracts (Gambling Insider, 2026-07-03). Polymarket sued New Mexico Attorney General Raúl Torrez and state gaming officials in federal court, arguing the state's suit against Kalshi and its refusal to delay enforcement created an immediate threat of enforcement against Polymarket (Gambling Insider, 2026-07-03). The same roundup records losses on the other side of the ledger — a Michigan restraining order requiring Kalshi to stop offering sports contracts in the state, and the Nevada Supreme Court denying Kalshi an emergency stay. Courthouse News adds that the Third Circuit ruled for Kalshi against New Jersey in April, while courts in Nevada, Michigan and Massachusetts have produced early wins for states (Courthouse News, 2026-07-02).
For the durable state-by-state reference rather than this single dated ruling, see is Polymarket & Kalshi legal.
What we could not verify
An honest gap beats a confident error, so: on 2026-07-28we could not read the order or the docket directly. The CourtListener docket page, the Star Tribune report and the NBC News report each returned no readable content to us. Everything above therefore rests on the sources named beside it — including two party statements published by the parties themselves (the CFTC's press release and the Minnesota Attorney General's) — and not on the order's own text, except for the single phrase FOX 9 quotes from it. We are deliberately not stating a docket number, a page cite, or the exact operative scope of the injunction, because we could not confirm them from the order. If you need the ruling itself, it is a public court record.
What Monitoring shows — and what it doesn't
Monitoring reports what has been filed, argued and ordered, each with a date and a named source. It does not forecast the outcome of this or any case, does not price it, does not take a position on whether the statute should stand, and does not tell any reader whether they may lawfully trade anywhere. Where a court order and a party's characterisation of it differ, both are attributed above and the reader is left to weigh them.