State v. operator
The State of Rhode Island v. KalshiEX LLC
U.S. District Court for the District of Rhode Island (removed from Providence County Superior Court, PC-2026-02753), 1:26-cv-00333
Pending
Cite this page
Bluebook
The State of Rhode Island v. KalshiEX LLC, Prediction Market Laws (last updated Oct. 21, 2026), https://predictionmarketlaws.com/lawsuits/ri-v-kalshi-polymarket.
APA
Prediction Market Laws. (2026, October 21). The State of Rhode Island v. KalshiEX LLC. https://predictionmarketlaws.com/lawsuits/ri-v-kalshi-polymarket
Removed May 22, 2026 by Polymarket US with Kalshi's consent and consolidated into Kalshi's case (No. 1:26-cv-00327) on June 22, 2026 before Judge Mary S. McElroy. PI motions (including Polymarket US's, filed June 9, 2026) were argued Aug. 3, 2026; no ruling found as of Oct. 21, 2026 (DeFi Rate lists them under advisement).
The question
Whether Rhode Island's enforcement suit belongs in federal or state court, and whether Rhode Island gambling law can be applied to the operator's event contracts.
Rhode Island's Attorney General sued Kalshi and Polymarket US in state court seeking significant civil penalties and disgorgement; the case was removed and consolidated with Kalshi's federal suit.
Docket timeline
PI hearing in the consolidated case.
Source: dockets.justia.com
Consolidated into No. 1:26-cv-00327.
Source: dockets.justia.com
Polymarket US moves for a preliminary injunction.
Source: dockets.justia.com
State files suit in Providence County Superior Court (date inferred from the CFTC's 'Friday' reference); Polymarket US removes it the same day with Kalshi's consent.
Source: dockets.justia.com