Kentucky Attorney General Russell Coleman filed lawsuits in Franklin Circuit Court on Wednesday against prediction market platforms Kalshi, Polymarket, and VGW. The legal action also targets financial brokerages Coinbase, Robinhood, and Webull for acting as platform partners. The state accuses these entities of running illegal and unlicensed sportsbooks by disguising sports wagers as event contracts. The move escalates an ongoing nationwide regulatory dispute over the legal classification of prediction markets in 2026.
State regulators view the billion-dollar platforms as unauthorized gambling operations that circumvent local sports betting laws. The platforms maintain they operate legally under federal commodities regulations. This lawsuit follows a wave of actions from at least 17 other U.S. states issuing cease-and-desist orders or taking legal action against prediction operators.
Key Details
- Kalshi and Polymarket recorded a combined $25 billion in trading volume in May 2026.
- The state is seeking financial penalties ranging from $2,000 to $10,000 per violation.
- Kentucky previously faced a lawsuit from the platforms over a new 14.25% excise tax.
The Kentucky lawsuit alleges the platforms offer users few resources to identify or seek help for gambling problems, a requirement for licensed operations in the state. Prosecutors are seeking severe penalties under the Kentucky Consumer Protection Act. The state wants to impose fines up to $10,000 per violation for infractions involving residents over 60 years old, according to court filings detailing the legal demands. Coleman stated the platforms do not pass the “sniff test,” asserting that Kalshi and Polymarket are operating illegal sportsbooks in Kentucky and breaking local laws.
This state-led action directly follows a separate court battle initiated by the prediction platforms. On June 14, a coalition including Kalshi, Polymarket, and Crypto.com sued Kentucky to block a newly enacted 14.25% excise tax on prediction market transactions. The companies argued the state tax is unconstitutional and discriminates against them when compared to the local horse racing industry, which pays a lower 9.75% rate, the platforms claimed in their initial filing.
A Polymarket spokesperson stated the state’s lawsuit contradicts established frameworks for regulating prediction markets. Kalshi spokesperson Jacki McGavick added that Kalshi is a federally regulated exchange overseen by the U.S. Commodity Futures Trading Commission (CFTC), not individual states.
The State vs. Federal Jurisdiction Clash
Kentucky is one of several states, including New York, Ohio, and Illinois, attempting to enforce local gambling laws on these platforms. The core issue centers on legal definitions. State authorities argue that event contracts tied to sports outcomes function exactly like traditional sports betting, which requires specific state-level licenses and consumer protections.
The platforms and the CFTC classify these contracts as swaps. This places prediction markets under federal commodities law rather than state gambling regulations. The CFTC previously sued eight states for stepping on its federal authority by taking localized action against these markets. The outcome of these overlapping state and federal lawsuits will dictate whether platforms handling tens of billions in monthly trading volume retain access to the U.S. retail market.