SKN | Kentucky Sues Kalshi and Polymarket, Escalating National Battle Over Prediction Markets

• Kentucky has filed lawsuits against Kalshi, Polymarket, Coinbase, Robinhood, and Webull, alleging they are offering illegal sports betting products without proper state licenses.

• The legal action adds to a growing conflict between state regulators and prediction market platforms over whether event contracts constitute gambling or federally regulated financial products.

• The outcome could have major implications for the future of prediction markets, a sector that processed roughly $25 billion in monthly trading volume in May.

Kentucky Joins Expanding Legal Offensive Against Prediction Markets

Kentucky has become the latest state to challenge the rapidly growing prediction market industry, filing lawsuits against major platforms Kalshi and Polymarket as well as trading partners Coinbase, Robinhood, and Webull.

Attorney General Russell Coleman announced the legal action, accusing the companies of operating unlicensed sports wagering platforms within the state. According to Kentucky officials, contracts allowing users to speculate on sporting outcomes fall under the state’s definition of sports betting and therefore require gaming licenses and regulatory oversight.

The lawsuits significantly intensify the ongoing legal battle between state regulators and prediction market operators, a dispute that could shape the future of event-based trading across the United States.

Gambling or Financial Product?

At the center of the dispute is a fundamental legal question: Are prediction market contracts gambling products or federally regulated financial instruments?

State regulators argue that contracts tied to sports outcomes function similarly to traditional sports betting and should therefore be governed by state gaming laws.

Prediction market operators strongly disagree.

Kalshi and Polymarket maintain that their event contracts are derivatives products regulated under federal commodities law and fall under the exclusive jurisdiction of the U.S. Commodity Futures Trading Commission (CFTC).

This interpretation has gained support from federal regulators, with the CFTC itself taking legal action against several states that attempted to restrict prediction market activity.

The agency argues that state authorities may be infringing upon federal oversight powers granted under existing commodities regulations.

Industry Growth Draws Regulatory Attention

The legal battles arrive as prediction markets experience unprecedented growth.

Combined monthly trading volume on Kalshi and Polymarket reportedly reached approximately $25 billion in May, highlighting increasing interest from both retail and institutional participants.

Prediction markets have expanded far beyond their original niche, allowing traders to speculate on elections, economic data, sporting events, geopolitical developments, and corporate outcomes.

Supporters argue these markets provide valuable forecasting mechanisms that aggregate collective intelligence and improve price discovery.

Critics, however, contend that many event contracts closely resemble traditional gambling products and should be regulated accordingly.

Courts Deliver Mixed Rulings

The rapidly expanding legal conflict has produced inconsistent outcomes across various jurisdictions.

Several states, including Nevada, New Jersey, New York, Illinois, Ohio, Tennessee, Maryland, and Connecticut, have either issued cease-and-desist orders or launched legal actions against prediction market operators.

Some courts have sided with prediction platforms.

In April, the Third Circuit Court of Appeals ruled that New Jersey regulators could not block Kalshi from offering certain sports event contracts within the state.

However, other courts have reached different conclusions. A federal judge in Michigan recently ruled against Polymarket, finding that certain sports-related contracts did not qualify as swaps under CFTC authority.

These conflicting rulings increase the likelihood that higher courts may eventually need to resolve the jurisdictional dispute.

Political and Regulatory Stakes Continue to Rise

The controversy has also attracted national political attention.

President Donald Trump has publicly supported maintaining the CFTC’s exclusive authority over prediction markets. Meanwhile, both Kalshi and Polymarket have developed connections to influential political figures and policymakers as the industry gains prominence.

Kentucky’s legal challenge also follows a separate dispute involving the state’s new 14.25% tax on prediction market transaction fees, which industry groups argue unfairly targets their business model.

The combination of taxation battles, regulatory disputes, and conflicting court decisions has created significant uncertainty for the sector.

Outlook

Kentucky’s lawsuits represent another critical chapter in the rapidly evolving fight over prediction markets in the United States. As states continue to challenge the industry’s legal status, courts are increasingly being asked to determine where gambling regulation ends and federal financial oversight begins.

With billions of dollars in trading volume at stake and legal decisions producing mixed results across jurisdictions, the ultimate resolution could reshape not only prediction markets but also the broader relationship between digital finance, commodities regulation, and state gaming laws.