States Rally to Protect Their Citizens From Prediction Market Overreach

A group of state attorneys general, totaling thirty‑eight, has filed a joint legal support document for Massachusetts in its fight against the online prediction platform Kal Shi. The states argue that allowing a federal agency to control this type of market would undermine their long‑standing authority over gambling and betting. They say Kal Shi’s strategy to sidestep state rules threatens the safety nets they have built for residents. Kal Shi, which is registered with the Commodity Futures Trading Commission (CFTC), claims it is not a gambling company but operates like a derivatives market. That claim has sparked disputes across the country, with many states insisting that such platforms should be subject to local gaming laws. The company is currently involved in more than thirty legal battles over its regulatory status. Massachusetts became the first state to file a lawsuit against a prediction market in September 2025, filing the case in Suffolk County Superior Court. A judge issued a preliminary order blocking Kal Shi from selling sports betting contracts in the state, but an appeals court later paused that order while the litigation continues. The states supporting Massachusetts see this as a critical test of how much power federal regulators should have over emerging betting technologies.The brief, written by Nevada’s Attorney General Aaron Ford and Ohio’s Dave Yost, lists every signatory state. It highlights that while sports betting has been legalized in most states since a 2018 Supreme Court decision, gambling remains heavily regulated at the state level. The document stresses that state laws have historically co‑existed with federal oversight of financial derivatives. Kal Shi’s business model allows it to operate even in places where traditional sports betting is illegal. The company argues that its offerings are distinct from gambling because they involve market speculation rather than chance. States counter this by pointing out that the line between betting and speculative contracts can be blurry, especially when outcomes are tied to real events. The joint brief arrives as the CFTC has filed its own lawsuit against a state, seeking to prevent state regulators from enforcing gambling laws on prediction market operators. This move follows earlier federal actions, including lawsuits against states like Arizona and Illinois, to curb state interference in these markets. The clash illustrates a broader national debate over whether emerging digital betting platforms should fall under state or federal jurisdiction. Both sides claim the best interest of consumers, but they disagree on how to protect them. The states’ argument hinges on preserving their traditional regulatory role, while the federal agency emphasizes uniform national standards. The outcome of this legal battle will shape how prediction markets operate across the United States.