- Kentucky sues Kalshi and Polymarket over alleged unlicensed sports betting activity.
- Regulators say sports contracts dominate Kalshi trading, about 70 percent.
- Case highlights clash between state gambling laws and federal CFTC framework.
A major legal battle is unfolding in Kentucky, where Attorney General Russell Coleman has filed a lawsuit against prediction market platforms Kalshi and Polymarket. The state argues that letting users wager on sports and event outcomes constitutes illegal sports betting under Kentucky law.
The lawsuit also targets major crypto and fintech on-ramps, including Coinbase, Robinhood, and Webull, alleging they facilitate illegal gambling without state consumer-protection licenses.
Kentucky Alleges Unlicensed Sports Betting Activity
The complaint alleges that Kalshi and Polymarket are operating sports betting services in Kentucky without the required state licenses or regulatory approval.
Kentucky Attorney General Russell Coleman stated that sports-related contracts accounted for roughly 70% of Kalshi’s trading volume during a 2025 sample period, representing nearly $23 billion in contracts traded last year, with about 89% tied to sports events.
The complaints further accuse Polymarket of misleading consumers by suggesting it holds authorization to offer sports betting in Kentucky.
Coleman also alleges that Coinbase partnered with Kalshi to facilitate unlicensed sports wagering, sharing transaction fees generated from those bets.
Additionally, the lawsuits claim that Kalshi, Polymarket, and affiliated entities such as Coinbase, Robinhood, and Webull fail to provide required gambling‑addiction resources under Kentucky law.
A Pro‑Trump State Challenges the CFTC
Timing the lawsuit is notable because Kentucky overwhelmingly supported former President Donald Trump. During his administration, the Commodity Futures Trading Commission (CFTC) treated prediction markets as regulated financial derivatives, suggesting federal rather than state oversight.
Kentucky’s legal action now contests that view, asserting that platforms like Kalshi and Polymarket function as unlicensed sports‑betting markets subject to state gambling statutes.
Why This Matters
Should Kentucky prevail, the decision could inspire other states to adopt similar measures, fragmenting the U.S. crypto regulatory landscape. Instead of a single federal framework, platforms may need to comply with a patchwork of 50 distinct state gambling and financial regulations.
