Kalshi sues Iowa officials claiming federal authority over prediction market contracts
A federally regulated prediction market is taking Iowa officials to court, arguing the state is threatening to crack down on trading activity that federal law already oversees.
Kalshi, a New York–based derivatives exchange, filed a complaint in the U.S. District Court for the Southern District of Iowa asking a judge to stop potential enforcement by the state. The company says Iowa’s attorney general and the Iowa Racing and Gaming Commission are trying to regulate financial event contracts that fall under federal authority.
The lawsuit, filed Wednesday (March 11), names Iowa Attorney General Brenna Bird and several members of the Iowa Racing and Gaming Commission in their official capacities. Kalshi is seeking a declaratory judgment along with an injunction that would block Iowa from applying state gambling laws to the exchange.
According to the complaint, seen by ReadWrite, tensions escalated after a March 4 meeting between Kalshi’s director of state relations and Bird. The company expected the discussion to focus on introducing the exchange and talking through a proposed tax bill that could affect platforms like Kalshi.
Instead, the conversation shifted toward legal questions about the company’s contracts.
Kalshi says its representative encountered a room filled with attorneys from the attorney general’s office, including Iowa’s solicitor general, who pressed the company about whether its federally regulated products violate Iowa law. Bird later described the meeting as “like a deposition,” according to the filing.
The attorney general also told the company her office had been “looking at” Kalshi “for a long time,” the lawsuit says.
Concerned that enforcement might follow, Kalshi contacted the attorney general’s office on March 10 to ask whether the state planned to bring a case. Officials declined to offer reassurance. In a written response cited in the complaint, an official said, “we will not give any assurances about potential future enforcement.”
Kalshi claims federal oversight over Iowa state gambling laws
Kalshi positions the legal question whether Iowa has the authority to regulate the contracts traded on the company’s platform.
Event contracts are a type of financial derivative that lets traders take positions on whether a particular event will happen. Traders might bet on economic indicators hitting certain levels or on other measurable outcomes. Prices move as market participants adjust their expectations about the likelihood of those events.
Kalshi argues these products are not gambling. Instead, the company says they function like options or futures, allowing individuals and businesses to hedge risk tied to real-world developments.
The exchange operates as a designated contract market regulated by the Commodity Futures Trading Commission. Under the Commodity Exchange Act, the CFTC has “exclusive jurisdiction” over trading on federally approved derivatives exchanges, the complaint states.
Kalshi says that the federal framework should override state gambling laws that might otherwise apply.
Still, the company is facing growing legal pressure across several states. In Ohio, a federal judge recently rejected Kalshi’s request for an injunction that would have blocked state enforcement while litigation continues. Meanwhile, Michigan’s attorney general has filed a separate lawsuit accusing the exchange of offering sports-betting-style contracts without proper authorization.
Iowa law treats unlicensed gambling activities as criminal offenses, including “bookmaking,” defined as accepting bets on the outcome of future events as a business.
Kalshi argues that applying those rules to its federally regulated exchange would create a patchwork of conflicting state restrictions. It cited the example of Tennessee, where a federal judge in February granted the company a preliminary injunction blocking state officials from taking action against its exchange while the case proceeds. The court found Kalshi was likely to succeed on its argument that its sports event contracts fall under federal derivatives law and the exclusive jurisdiction of the Commodity Futures Trading Commission, meaning state regulators could not enforce their own gambling laws against the platform.
In its filing, the company warns that enforcement could damage its reputation, disrupt contracts with customers and partners, and threaten its viability as a national exchange.
ReadWrite has reached out to Iowa Attorney General’s Office and the Iowa Racing and Gaming Commission for comment.
Featured image: Kalshi / Canva
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