Published on: May 13, 2026, 07:36h.
Updated on: May 13, 2026, 07:36h.
- New Mexico tribes accuse Kalshi of conducting illegal sports betting.
- Lawsuit asserts prediction markets breach tribal gaming regulations and sovereignty.
- This case could redefine the governance of sports prediction markets across the nation.
On Monday, four tribes from New Mexico filed a lawsuit against Kalshi, claiming the federally regulated prediction market is unlawfully facilitating sports betting on tribal territories, violating the federal Indian Gaming Regulatory Act (IGRA).
In a detailed 34-page complaint lodged in federal court in New Mexico, the Mescalero Apache Tribe, Pueblo of Isleta, Pueblo of Pojoaque, and Pueblo of Sandia argue that Kalshi’s sports-event agreements are effectively indistinguishable from wagering activities and thus must adhere to tribal gaming regulations and agreements.
Kalshi operates under the oversight of the federal Commodity Futures Trading Commission, which has allowed the platform to self-certify specific event contracts.
Exclusive Regulatory Rights
The tribes, all of which manage casino operations, argue that IGRA grants them exclusive rights to regulate Class III gaming on tribal lands and posits that federally sanctioned gaming agreements disallow unauthorized online gambling activities.
Additionally, they highlight that Kalshi allows individuals as young as 18 to engage in sports betting, whereas tribal gaming establishments require patrons to be at least 21 years old.
The tribes are seeking a court injunction to prevent Kalshi from offering sports betting within their territories, along with acknowledgment that the firm’s actions contravene IGRA and tribal regulations. The lawsuit also demands civil penalties and punitive damages for intentional violations.
This lawsuit represents the latest legal challenge to Kalshi’s sports-event markets, which have ignited debates across the country regarding whether prediction contracts fall under federally regulated financial products or if they should be classified as illegal sports betting governed by state and tribal gaming laws.
Kalshi’s Own Acknowledgment of Sports Betting
The lawsuit references amendments to federal commodities legislation introduced under the Dodd-Frank Act after the 2008 financial crisis, which prohibits contracts linked to “gaming” or activities seen as against the public interest from being listed on official exchanges.
Despite this, Kalshi has marketed itself as the “first app for legal sports betting across all 50 states.” Furthermore, the company has confessed to the U.S. Patent and Trademark Office that it provides “[b]ookmaking services, including delivering information related to sports betting, and organizing, arranging, and hosting sports betting and gambling tournaments and contests,” according to the lawsuit.
Since launching its sports-event contracts in early 2025, Kalshi has experienced rapid growth, with its daily trading volume escalating from about $4 million in late 2024 to nearly $800 million per day, primarily driven by sports-related contracts.
As of now, Kalshi’s legal team has not submitted a response to the lawsuit.