Key Highlights
- On May 4, the Massachusetts Supreme Judicial Court convened to hear arguments regarding Kalshi’s authority to provide sports-event contracts without obtaining a state gaming license
- The justices probed the distinctions between Kalshi’s offerings and conventional sports wagering
- The company contends that federal CFTC jurisdiction under the Dodd-Frank Act exclusively governs its operations
- State Attorney General Andrea Campbell secured a preliminary court order in February blocking Kalshi’s sports-related contracts within Massachusetts
- Should the injunction be upheld, Massachusetts would join Nevada as only the second state to successfully block Kalshi via judicial action
A pivotal legal battle unfolded Monday as the Massachusetts Supreme Judicial Court examined whether prediction market operator Kalshi may legally offer sports-event contracts within state borders. The outcome could establish Massachusetts as just the second jurisdiction to successfully halt the company’s operations through litigation.
Grant Mainland, representing Kalshi, maintained that the U.S. Commodity Futures Trading Commission possesses sole regulatory authority over his client’s operations. He petitioned the court to reverse a preliminary injunction preventing Kalshi from enabling users to place financial wagers on baseball, football, and various other sporting events without securing a state gaming license.
“The core issue here is federal regulatory jurisdiction,” Mainland asserted before the court. Multiple justices among the seven-member panel challenged this assertion throughout the proceedings.
Justice Gabrielle Wolohojian questioned Mainland about the substantive differences separating Kalshi’s products from established sportsbooks. “How exactly do these differ from what people would commonly understand as a wager,” she inquired.
The Federal Jurisdiction Defense
Mainland highlighted the company’s official registration with the CFTC. He contended that Kalshi’s sports-related contracts constitute “swaps,” a category of financial derivatives that Congress designated for exclusive CFTC supervision through the Dodd-Frank Act.
He referenced an April decision from the 3rd U.S. Circuit Court of Appeals. That appellate panel prevented New Jersey authorities from pursuing enforcement measures against Kalshi, validating the company’s position regarding federal oversight.
Mainland emphasized that the CFTC submitted an amicus brief endorsing Kalshi’s Massachusetts appeal. The federal agency’s participation demonstrates its perspective that these contracts belong within its regulatory purview.
Kalshi and comparable platforms enable users to trade based on event outcomes. These encompass everything from political elections to athletic competitions. State authorities contend these platforms operate without appropriate licensing.
Attorney General Andrea Campbell initiated legal proceedings against Kalshi last September. She maintained the company violated state gaming statutes, including provisions prohibiting wagers from individuals younger than 21.
Campbell obtained a preliminary injunction this February that would prevent Kalshi from providing sports contracts throughout the state. That directive remains suspended pending Kalshi’s appeal.
Growing State Opposition to Prediction Platforms
Should the injunction become effective, Massachusetts would become the second state alongside Nevada to successfully block Kalshi through judicial means. This case represents a critical battleground in the expanding legal conflict surrounding prediction market regulation nationwide.
Justice Scott Kafker questioned whether Congress truly intended to eliminate states’ historical responsibilities in overseeing gambling activities. “If someone wants to wager on a sporting event, this provides that mechanism,” he noted.
Kafker observed that Congress would have been expected to articulate clearly any intention to strip states of their gambling oversight powers. His remarks reflected apprehensions voiced by regulatory officials in numerous states.
Assistant Attorney General Gerard Cedrone cautioned that siding with Kalshi would constitute a “sea change” in gaming oversight. “This would essentially eliminate state regulation of what constitutes, in every meaningful way, a sports wager,” he informed the justices.
The case represents just one among multiple ongoing legal challenges Kalshi confronts nationwide. The company maintains operations in the majority of states as appeals continue.
The court provided no timeline for its decision. The CFTC’s amicus brief supporting Kalshi’s appeal ranked among the most current submissions in the proceeding.


