Kentucky Sues Prediction Markets and Sweepstakes Casinos

Kentucky’s attorney general has opened a three-front legal fight to push the biggest names in online wagering off residents’ phones, suing prediction-market operators Kalshi and Polymarket alongside one of the country’s largest sweepstakes-casino groups in a single enforcement sweep.

Attorney General Russell Coleman announced the three lawsuits on June 17, 2026, filing them separately in Franklin Circuit Court and accusing each company of running unlicensed, illegal gambling in the state. The complaints seek court orders halting the products for Kentucky residents, plus civil penalties of up to $2,000 for each violation of the state’s consumer-protection law — rising to $10,000 where the person harmed is over 60 — along with damages under Kentucky’s loss-recovery statute. None of the allegations has been tested in court.

Prediction markets recast as sportsbooks

Coleman’s central claim is that Kalshi and Polymarket are sportsbooks wearing a financial-markets costume. The platforms let users stake money on game winners, point spreads, player props and totals, the same products a licensed sportsbook offers, while branding them “event contracts,” his office argues. The state says sports betting made up roughly 70% of Kalshi’s trading volume over a sampled stretch of 2025, and accounted for 89% of the nearly $23 billion in contracts the platform handled last year. The Kalshi complaint also pulls in Coinbase, Robinhood and Webull as affiliates, alleging Coinbase split the fee on every trade routed through its app.

The platforms have raced into the mainstream over the past year, expanding through new partnerships and high-profile ad campaigns, which has sharpened regulators’ attention. Coleman said the two platforms are “operating illegal sportsbooks in Kentucky and breaking our laws.”

The licensing gap sits at the heart of the case. In Kentucky, only the state’s licensed horse-racing tracks can hold a sports-wagering license, issued through the Kentucky Horse Racing and Gaming Commission, which has overseen betting in the state for more than a century. Coleman says the prediction markets never obtained one, market themselves as if they were authorized, and offer little or no help for problem gamblers, a protection state law requires of licensed books.

Sweepstakes casinos pulled into the same net

The third suit targets VGW, the operator behind Chumba Casino, Global Poker and LuckyLand Slots and one of the largest sweepstakes-casino businesses in the US. Its games run on a dual-currency model: players get free chips, but can also buy “Sweeps Coins” that carry cash value and can be redeemed for money, cryptocurrency or gift cards. Coleman’s office calls that an unlicensed online casino dressed up as a promotional game, comparing the coins to casino chips and citing a study in the complaint that the format exploits the same addiction triggers as conventional slots and blackjack.

VGW rejected the characterization and said it would vigorously defend the suit, arguing it has operated lawfully across the US for more than a decade delivering free-to-play “Social Plus” games. The company is still letting Kentuckians reach its sites while the case proceeds.

Pairing the prediction-market operators with a sweepstakes operator in one coordinated action is the unusual move. Sweepstakes casinos have historically occupied a separate legal category from sports betting, and a ruling that folds them into Kentucky’s definition of illegal gambling would carry weight well beyond these three defendants.

A two-way fight over who regulates what

The suits land in the middle of an escalating jurisdictional brawl. Kalshi and Polymarket maintain that oversight by the federal Commodity Futures Trading Commission shields them from state gambling law. “The CFTC is our regulator — not the states,” a Kalshi spokesperson said, pointing to earlier court decisions the company expects to hold. Polymarket said the Kentucky action runs counter to the federal framework for prediction markets and that it would answer the claims in court. Both are expected to argue that federal oversight of their event contracts preempts Kentucky’s gambling law, a defense whose traction in a state courtroom is far from settled.

The litigation already runs in both directions. Days before Coleman sued, a coalition that includes Kalshi and Crypto.com’s derivatives arm sued Kentucky to block a new 14.25% tax on prediction-market transactions, calling it discriminatory and preempted by federal law. A separate state law taking effect July 15, 2026, bars licensed sportsbooks from partnering with the platforms. The CFTC itself, which under the current administration has backed prediction markets, has sued several states that tried to apply gambling rules to the exchanges. But those targets were all Democratic-led, making a suit from a Republican attorney general a fresh test of the agency’s stance.

Even as US states push back, the model keeps moving the other way elsewhere, with some jurisdictions beginning to grant prediction-market licenses.

What to watch

Kentucky is the newest front in a widening campaign. New Mexico’s attorney general filed a parallel suit against Kalshi days earlier, Nevada regulators have moved to hold the company in contempt over geofencing failures, and a Nevada court has already blocked Polymarket from operating there. The pressure isn’t only domestic, either: a group of European regulators recently issued a joint statement pledging to coordinate against unlicensed prediction markets. For now, the decisive question is whether a state judge will assert authority over a federally registered platform on a gambling theory at all, and whether Kentucky’s choice to sweep sweepstakes casinos into the same fight marks the start of a broader effort to redraw the line around illegal gambling.