US States Move Against Prediction Markets: Kalshi Faces Nevada Injunction and Arizona Criminal Charges
US regulators are tightening scrutiny of prediction markets, with 11 states taking legal action against platforms such as Kalshi and Polymarket.
On March 20, a Nevada judge granted a temporary 14-day injunction against Kalshi after state gaming officials argued prediction markets function as unlicensed gambling. The order blocks Kalshi from offering “event contracts” tied to sports, politics, and entertainment to Nevada residents without required licenses.
Arizona escalated next to criminal enforcement. Prosecutors charged Kalshiex LLC and Kalshi Trading LLC with operating illegal gambling and placing bets on Arizona elections. The case cites unlawful election wagers and broad bets on outcomes, including sports events and whether the SAVE Act would pass.
Several other states are pursuing enforcement or proposing frameworks. Utah introduced HB243 to define “proposal betting.” Pennsylvania lawmakers plan rules that would place prediction markets under the state gaming regulator, add a 34% state tax plus 2% local assessment, require AML/KYC, and restrict underage users.
Courts are not uniformly siding with states. In Tennessee, a federal judge rejected a state move to block Kalshi, ruling these event contracts fall under the Commodity Exchange Act (CEA) and are within the CFTC’s exclusive jurisdiction.
At the federal level, Utah Sen. John Curtis proposed legislation to amend the CEA to prohibit certain sports/casino-type event contracts. Meanwhile, the CFTC is seeking public comments on prediction-market rules, and the article frames the conflict over whether oversight should remain with the federal CFTC or shift toward state control.
Neutral
This is primarily a US legal/regulatory headline focused on prediction markets rather than crypto market structure directly. Short term, it can create sentiment noise for crypto-adjacent platforms (e.g., Polymarket) and increase compliance risk premiums for any projects tied to US-facing betting/prediction products. The key “market-moving” angle is uncertainty over jurisdiction: Nevada and Arizona are taking aggressive steps, while Tennessee ruled in favor of CFTC-exclusive oversight under the CEA. That split raises the probability of prolonged litigation and policy churn—typically a neutral-to-slightly risk-off catalyst for niche platforms, but not enough to systematically move major crypto assets.
In the long run, if CFTC guidance or federal amendments effectively formalize rules (or if the Supreme Court ultimately favors a specific jurisdiction), regulatory clarity could reduce uncertainty for compliant operators. However, until rules solidify, traders may treat it as a headline risk rather than a fundamental driver of BTC/ETH flows. Compared with past crypto-adjacent enforcement waves (where legal outcomes take months and markets react to headlines first, fundamentals later), this story is more likely to affect volatility in prediction-market-related narratives than overall market stability.