States press crypto prediction markets in court

TLDR

US states are increasingly hauling crypto-linked prediction markets into court, challenging whether they are regulated derivatives or illegal gambling.

1. Multiple US states are pursuing cases against Kalshi and Polymarket, and a federal appeals court just let key state gambling actions move forward.
2. The fight is over who regulates event contracts and whether crypto prediction markets enable unlicensed gambling and insider trading on real-world events.
3. Users should expect more geoblocking, tighter KYC, and possibly a Supreme Court or Congressional decision that will define which platforms survive in the US.

Deep Dive

1. How States Are Pressing These Markets

Nevada and Washington are suing prediction market platforms Kalshi and Polymarket under state gambling laws, focusing on sports and other event contracts that look like betting products without state gaming licenses. A US Ninth Circuit panel just denied emergency motions from both companies to halt those enforcement cases, sending them back to state courts and ruling that Commodity Exchange Act defenses do not, by themselves, create federal jurisdiction for removal. This was summarized in a recent community report.

This is not isolated. CNBC reports that seventeen US states are challenging prediction market businesses such as Kalshi, Polymarket, Coinbase and Robinhood, with one state already imposing a full ban on prediction markets as gambling services rather than regulated derivatives here.

2. Why This Matters For Crypto Users

Kalshi operates as a CFTC-regulated exchange, while Polymarket runs crypto-native prediction markets that rely heavily on stablecoins and blockchain settlement. States argue many of their event contracts are simply unlicensed online gambling, despite federal derivatives oversight claims.

At the same time, the US House Oversight Committee has opened an insider trading probe into both platforms after reports of unusually well-timed bets on military actions and elections, seeking details on KYC, geographic controls and suspicious-trade monitoring, as outlined in this congressional-focused summary. That links crypto prediction markets to classic securities-style concerns about trading on material nonpublic information.

3. What To Watch Next

There is already a split between federal courts: the Third Circuit earlier sided with Kalshi against New Jersey regulators, while the Ninth Circuit just backed Nevada and Washington, raising the chance that prediction market jurisdiction could be pushed up to the Supreme Court, as noted in the appeals coverage. Parallel to that, the CFTC claims exclusive authority over event contracts, while states, Congress and even sports leagues (through integrity MOUs with the CFTC) are all pushing their own angles.

For users and builders, the key signals are: new state bans or lawsuits, any Supreme Court review, and potential federal legislation that either carves out regulated prediction markets or clamps down on them as gambling. Until then, platforms are likely to expand geoblocking, narrow product menus and harden KYC and surveillance.

Conclusion

States pressing crypto prediction markets in court reflect a broader jurisdiction fight over whether these platforms are regulated financial infrastructure or unlicensed online gambling with insider trading risk. For crypto users, the near term likely brings fragmented access and stricter controls, while the long term will depend on how courts and Congress decide to categorize and police event contracts that sit at the intersection of derivatives, gambling and blockchain.