Washington judge orders Kalshi to halt most state betting operations
A King County Superior Court judge ordered Kalshi on August 13 to halt most of its prediction market operations in Washington state. The final order blocks sports, election, politics, entertainment, culture, and technology markets while allowing commodities, climate, economics, and finance contracts to continue. Kalshi must install initial geofencing by August 19 and a GeoComply multi-source system by September 2. Regulators argued the blocked contracts likely violate state gambling law.
Washington becomes the latest state to reject Kalshi's federal preemption defense, after Wisconsin, New York, Utah, and Connecticut. Kalshi and Polymarket, each loss forces the same binary choice: build state-specific geofences or accept that open contracts may be voided under local gambling law. Traders now face a patchwork where contract validity depends on geography, not CFTC registration.
The five-state pattern leaves no uniform standard; appeals stretch across months or years. Kalshi's compliance deadline is eleven days away. The platform built national scale on the assumption that federal designation would block state enforcement. That assumption is now collapsed in a growing share of the country, and geofencing costs multiply with every court loss.