Kalshi ordered to stop broad range of prediction markets in Washington
Reported by Cointelegraph · AI-assisted summary by ChikoCorp AI News Desk

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Summary
A Washington state judge has ordered the prediction market platform Kalshi to stop offering a wide range of event contracts within the state. The judge rejected Kalshi’s argument that federal commodities law overrides Washington’s gambling law. The prohibition covers contracts linked to sports, elections, politics, entertainment, culture, tech, science, and “mentions,” while allowing contracts related to commodities, climate, economics, and finance.
Why it matters
The ruling holds Kalshi accountable for allegedly running an illegal gambling operation under Washington law, which could impact how prediction markets operate in the state. The decision challenges Kalshi’s claim that federal regulation under the Commodity Exchange Act preempts state gambling laws, potentially influencing jurisdictional boundaries for such platforms.
Key context
The preliminary injunction was initially granted in July by King County Superior Court Judge John McHale and was amended in a recent order. Kalshi has been required to implement IP-address and residency-based geofencing by August 19 and a multi-source geofencing system by September 2 to block Washington residents from participating in prohibited contracts. Kalshi’s appeal for a stay of the injunction with the Washington Court of Appeals was denied.
Key numbers and entities
The entities involved include prediction market platform Kalshi, King County Superior Court Judge John McHale, and Washington Attorney General Nick Brown. Specific dates include the geofencing implementation deadlines of August 19 and September 2. No numerical figures beyond these dates are provided.
What remains unclear
The source does not flag any open questions or uncertainties regarding the ruling or its implementation.