CFTC Sues Arizona, Illinois, Connecticut for Blocking Prediction Markets 

The U.S. Commodity Futures Trading Commission (CFTC) has filed lawsuits against Illinois, Connecticut, and Arizona to assert federal control over prediction markets. The agency argues these platforms fall under derivatives law, not state gambling rules. The move directly impacts platforms like Kalshi and Polymarket, which sit at the edge of cryptocurrency and financial markets.

Federal vs state fight over “event contracts”

As it happens, states argue these platforms operate like online gambling, allowing users to bet on outcomes such as elections or geopolitical events. That view has led to enforcement actions, including criminal charges filed against Kalshi in Arizona.

On the other hand, the CFTC classifies these products as “event contracts,” a type of financial derivative similar to swaps. Under U.S. law, derivatives markets fall under federal oversight, not state gaming commissions, the regulator said in a press release on April 2.

If the courts side with the CFTC, prediction markets would operate under a single national framework instead of navigating different state rules. CFTC Chairman Michael Selig made the position clear, arguing that a fragmented system increases risk and weakens oversight.

“This is not the first time states have tried to impose inconsistent and contrary obligations on market participants, but Congress specifically rejected such a fragmented patchwork of state regulations because it resulted in poorer consumer protection and increased risk of fraud and manipulation.”

Either way, Selig vowed that his agency “will continue to safeguard its exclusive regulatory authority over these markets and defend market participants against overzealous state regulators.”

As a reminder, a bipartisan group of U.S. senators earlier introduced a bill to ban sports betting contracts on prediction markets, including on Kalshi and Polymarket, known as the BETS OFF Act, which threatens to block a growing segment of trading activity tied to sports outcomes.

Implications for crypto and onchain markets

Prediction markets have become one of the fastest-growing sectors tied to the crypto industry. Platforms like Polymarket rely on blockchain infrastructure and stablecoins, attracting global liquidity and bypassing traditional betting systems.

That growth has brought regulatory pressure. The lawsuits signal a shift from passive oversight to direct legal action aimed at defining jurisdiction. If the CFTC wins, it could open the door for broader institutional participation, since derivatives markets are already a regulated space.

If states push back successfully, the industry could face a patchwork of restrictions that limit access and liquidity. Nevertheless, the outcome will shape how event-based trading evolves.

And for crypto-linked platforms, it may determine whether they are treated as financial infrastructure or as gambling.