Tennessee Prediction Market Crackdown Stumbles as Judge Blocks Enforcement Against Kalshi

A federal judge has temporarily blocked Tennessee officials from enforcing a sweeping cease-and-desist order against prediction market operator Kalshi, marking an early but significant setback for one of the most aggressive state-level crackdowns to date on sports-based event contracts.

On Monday, U.S. District Judge Aleta Trauger granted Kalshi a temporary restraining order (TRO) that bars the Tennessee Sports Wagering Council and the state attorney general from applying the state’s sports betting and gambling statutes to the platform while litigation continues. 

The ruling effectively pauses Tennessee’s enforcement effort until at least Jan. 26, when a preliminary injunction hearing is scheduled.

In her order, Trauger said Kalshi is likely to succeed on the merits of its claims and would face irreparable harm if the state were allowed to proceed. 

That assessment gives the company a meaningful advantage early in what is expected to be a closely watched legal showdown over the future of prediction markets in the United States.

Tennessee’s Sweeping Order Meets Swift Federal Pushback

The TRO follows an aggressive enforcement action issued by Tennessee regulators just days earlier. 

In that order, the Tennessee Sports Wagering Council instructed Kalshi, fellow prediction market Polymarket, and crypto exchange Crypto.com to stop offering sports-related event contracts to state residents, void all open contracts, refund deposits, and wind down all in-state activity by Jan. 31.

Regulators warned that noncompliance could lead to civil penalties of up to $25,000 per violation and even criminal referrals for aggravated gambling promotion — some of the harshest penalties threatened against a prediction market operator in any U.S. jurisdiction.

Kalshi immediately challenged the order in federal court, arguing that because it is a U.S. Commodity Futures Trading Commission (CFTC)-regulated designated contract market (DCM), federal derivatives law preempts state gambling statutes. 

The company has made similar arguments in multiple states as local regulators increasingly seek to classify sports event contracts as gambling products rather than federally overseen derivatives.

A Growing Patchwork of Conflicting Legal Rulings

Trauger’s ruling does not ultimately settle the preemption question, but it does temporarily shield Kalshi from Tennessee’s enforcement effort — a meaningful victory in an emerging national pattern of legal disputes.

Federal courts in New Jersey and Nevada have previously sided with Kalshi, granting preliminary injunctions blocking those states from enforcing their gambling laws against the company. But last year, a Maryland court broke in the opposite direction, denying injunction relief and allowing regulators there to move forward with enforcement.

The diverging outcomes show a legal environment that remains unsettled, with courts wrestling over whether sports-based event contracts — including wagers on game outcomes, draft positions, or season performance — should be treated as commodities subject to federal regulation or as gambling instruments squarely within state jurisdiction.

The CFTC has maintained that Kalshi’s operations fall under its exclusive purview as a DCM, while several states have voiced increasing skepticism about the legitimacy of sports-related derivatives contracts. 

Tennessee’s cease-and-desist order referenced concerns about consumer protection, market integrity, and the potential for unregulated gambling to bypass state licensing frameworks.

What the Ruling Means for Kalshi — and the Industry

For now, Trauger’s TRO preserves Kalshi’s ability to continue offering its products to Tennessee residents while the court evaluates the merits of the case. 

It also signals that at least some federal judges still view Kalshi’s preemption arguments as persuasive, even as regulators nationwide step up efforts to rein in the rapidly growing event-prediction sector.

The upcoming Jan. 26 hearing will likely determine whether the TRO becomes a longer-lasting preliminary injunction, setting the stage for what could become a major test of the boundaries between federal derivatives law and state gambling oversight.

As prediction markets expand and crypto-native platforms like Polymarket gain traction, states are increasingly moving to assert authority over event-based trading — creating a regulatory collision that is now playing out in courtrooms across the country.