Prediction markets have exploded into one of the most contested regulatory battlegrounds in the United States, with federal agencies, state governments, and Congress all moving simultaneously to define or dismantle an industry that barely registered on the legislative radar just a few years ago.
The core dispute is a jurisdictional one. The Commodity Futures Trading Commission has staked a claim that event contracts, the instruments underpinning prediction market platforms such as Kalshi and Polymarket, are classified as swaps and fall exclusively under federal oversight.
The CFTC has filed lawsuits against six states — Wisconsin, New York, Connecticut, Illinois, Arizona, and Minnesota — to defend that position, arguing it holds exclusive jurisdiction. Notably, all six states targeted so far have Democratic attorneys general, a pattern that has drawn accusations of selective enforcement.
States are pushing back hard. Eleven states have issued cease and desist orders against prediction market operators, arguing that the platforms function as unlicensed sports betting operations and that their expansion has already cost state governments more than $600 million in sports betting tax revenue. The financial stakes are significant. Kalshi alone reported nearly $1.9 billion in college basketball wagers in February 2026, a figure that makes plain why regulated sportsbook operators and the states that tax them view the platforms as an existential threat.
Minnesota has gone furthest among the states; lawmakers there approved legislation banning prediction market operations, with the measure passing the state House 100 to 32 and the Senate 57 to 9. If Governor Tim Walz signs it, the law would take effect in August and prohibit trades tied to sports, politics, pop culture, and other real world events. Kalshi called the move peak hypocrisy given that Minnesota runs its own gambling operations, but the legislative momentum is difficult to ignore.
The industry’s legitimacy problems go beyond the turf war between state and federal regulators. A separate and arguably more damaging controversy has emerged around the use of insider information on these platforms. Congressional investigators are examining a series of suspicious trades connected to US and Israeli military operations against Iran, including a single trader who posted a 93 percent success rate on wagers predicting unannounced strikes, placing bets hours before operations in October 2024, June 2025, and February 2026. The specificity of those bets, and their timing, has alarmed lawmakers on both sides of the aisle.
A US Army special forces soldier has already been charged with using classified information to place bets tied to a mission involving Venezuelan President Nicolas Maduro, a development that has given critics powerful ammunition. The platforms’ defenders argue such cases represent bad actors rather than structural failures, but Congress is not waiting for that debate to resolve itself before moving.
Multiple bills are now working through the 119th Congress targeting different aspects of the problem. The Public Integrity in Financial Prediction Markets Act of 2026 would bar elected federal officials, House and Senate employees, and political appointees from trading event contracts while in possession of material non-public information. A separate measure, the End Prediction Market Corruption Act, would categorically prohibit the President, Vice President, and members of Congress from trading event contracts altogether.
Democratic Senator Chris Murphy and Representative Greg Casar have introduced the BETS OFF Act, which would ban wagering on government actions, terrorism, war, and assassination, as well as any event where an individual knows or controls the outcome. The bill’s path to passage is uncertain in a Republican controlled Congress, but it reflects a bipartisan unease that now spans chambers and parties.
The platforms themselves maintain that prediction markets serve a legitimate forecasting function, arguing that aggregated crowd wisdom on probabilistic outcomes produces more accurate signals than expert opinion. For those researching where to engage with these platforms, some of the prediction markets rated here offer a useful reference point for understanding the landscape. But the commercial argument is becoming harder to sustain against a backdrop of classified leaks, insider trading probes, and a Supreme Court showdown that most analysts now consider inevitable.
With federal courts already reaching conflicting conclusions on the legality of prediction markets, the industry appears to be on a trajectory toward a definitive ruling from the US Supreme Court. Until then, the regulatory chaos will continue, and the billions at stake will ensure that neither side backs down quietly.
