Kalshi's State-by-State Legal Whack-a-Mole
Kalshi is simultaneously winning and losing the state-vs-federal fight depending on which courthouse you're standing in. Meanwhile, Polymarket's getting congressional heat for insider trading and lost its Google traffic funnel in the same week.
Regulatory
Federal Judge Blocks Arizona from Enforcing Gambling Laws Against Prediction Markets
A Phoenix federal judge issued a temporary injunction on April 10, blocking Arizona from applying state gambling statutes to federally regulated prediction markets. The ruling backs DOJ and CFTC preemption arguments, immediately halting Arizona's criminal case against Kalshi — the first state to file charges against the platform.
Federal preemption removes state-level regulatory friction, stabilizing liquidity and pricing efficiency on CFTC-regulated exchanges. For now, you can price policy and geopolitical contracts on Kalshi without worrying about jurisdiction-by- jurisdiction shutdowns fragmenting your book.
Ohio Regulators Fine Kalshi While Drafting New Betting Restrictions
The Ohio Casino Control Commission fined Kalshi on April 16 for running sports-related prediction contracts after a cease order. Separately, Ohio lawmakers are drafting bills to cap betting volume and tighten operational limits.
Two-front problem for Ohio-based positions. Route volume through federally cleared books or avoid state-specific exposure entirely. Damage control if you're Ohio-heavy.
Prediction Markets
Lawmakers Demand CFTC Probe into Polymarket Insider Trading
Rep. Ritchie Torres and fellow lawmakers formally requested a CFTC investigation on April 9 into suspected insider trading on Polymarket tied to a U.S.-Iran ceasefire announcement. At least 50 newly created accounts placed heavy wagers minutes before the presidential statement.
Expect tighter surveillance and potential trading halts on politically sensitive contracts. Size down on breaking-news geopolitical markets and price in the possibility of clawbacks or frozen funds.