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29 May 2026

Rhode Island Attorney General Targets Prediction Markets in New Legal Challenge

Rhode Island state capitol building with legal documents overlay representing the lawsuit against prediction markets

Attorney General Peter Neronha filed suit in state court against Kalshi and Polymarket on grounds that their sports-related event contracts function as illegal sports betting and online casino gaming under Rhode Island statutes. The action claims these platforms operate outside the state's regulated gambling framework and avoid associated taxes and oversight. Kalshi responded with a preemptive federal filing hours before the state complaint became public, asserting that its offerings qualify as derivatives and swaps under Commodity Futures Trading Commission authority rather than state-level gambling products.

The filings mark an escalation in disputes over jurisdiction that have involved prediction market operators, state regulators, and traditional gambling entities for several years. Court documents describe the contracts as allowing users to wager on outcomes such as election results, sports events, and other occurrences in ways that mirror prohibited betting activities. Rhode Island law requires all such gaming to pass through licensed channels, a requirement the complaint alleges Kalshi and Polymarket have bypassed.

Details of the State Complaint

According to the press release from the Attorney General's office, the suit seeks to halt the platforms' sports-related offerings within Rhode Island and to recover penalties for past operations. The complaint outlines how event contracts on these sites permit participants to take positions on game results and player performances, structures that state regulators equate to sports wagering. Evidence cited includes user interfaces and contract structures that enable direct financial stakes on athletic competitions without state licensing.

State officials argue that these activities generate revenue streams comparable to those from licensed sportsbooks yet contribute nothing to regulatory funds or problem-gambling programs. The filing references specific contract examples tied to professional leagues and notes that users can deposit funds and withdraw winnings through standard payment methods. Rhode Island maintains a controlled system for gambling that includes casinos and sports betting through approved operators, and the complaint positions the prediction markets as direct competitors operating without equivalent safeguards.

Kalshi's Federal Response

Kalshi's federal lawsuit, lodged in advance of the state action, asks the court to declare that CFTC oversight preempts Rhode Island's gambling statutes for these products. The company maintains that its event contracts meet the legal definition of swaps and therefore fall under federal derivatives rules established by Congress. Company representatives have stated in court papers that federal registration provides the sole regulatory framework and that state interference would create conflicting standards across jurisdictions.

The federal complaint emphasizes that Polymarket operates under similar CFTC guidance for certain contracts while Kalshi holds explicit registration for its platform. Attorneys for Kalshi argue that allowing states to reclassify these instruments as gambling would undermine the national market for event contracts and create uneven enforcement. They point to prior CFTC approvals for similar products as evidence that federal regulators have already determined the appropriate category.

Courtroom scene with prediction market charts and legal briefs illustrating the Kalshi and Polymarket lawsuit

Broader Context of Jurisdictional Conflicts

Observers note that similar tensions have appeared in other states where prediction markets expanded their sports offerings. Traditional gambling operators have raised concerns about market share and tax collection, while platform operators cite federal preemption as protection against patchwork state rules. Data from regulatory filings shows prediction market volumes have grown substantially since 2023, with sports contracts representing an increasing share of activity on both Kalshi and Polymarket.

The Rhode Island case arrives during a period when several states have examined their gambling statutes in light of new financial products. Court records indicate that the Attorney General's office began reviewing these platforms months earlier after receiving complaints from licensed operators. The resulting complaint compiles examples of contracts that reference specific games and seasons, arguing that such granularity distinguishes them from broader event markets previously tolerated under federal rules.

Legal analysts following the filings expect the federal court to address the preemption question first, which could influence how other states proceed. Rhode Island's complaint requests both injunctive relief and monetary penalties, while Kalshi seeks a declaratory judgment that would shield its operations nationwide. The outcome may set precedents for how event contracts are classified when they intersect with athletic competitions.

Potential Implications for Market Participants

Should the state prevail in its arguments, platforms may need to restrict Rhode Island users from sports-related contracts or restructure offerings to comply with local licensing. Conversely, a favorable federal ruling for Kalshi could limit states' ability to apply gambling laws to CFTC-regulated products. Industry participants have already begun adjusting compliance protocols while monitoring developments in Providence and federal district court.

The dispute also touches on tax revenue questions, since licensed sports betting in Rhode Island channels a portion of handle to state programs. Prediction market operators currently treat their contracts as financial instruments subject to different tax treatment, a distinction the state complaint challenges as artificial when sports outcomes form the basis of the contract.

Conclusion

The dual filings in Rhode Island state court and federal district court crystallize ongoing questions about regulatory boundaries between gambling and derivatives markets. Both sides have presented detailed legal positions supported by references to statutes, prior regulatory actions, and contract mechanics. Proceedings are expected to continue through 2026 as courts examine the scope of federal preemption and the reach of state gambling enforcement in this evolving sector.