A King County Superior Court judge has issued a preliminary injunction against prediction market operator Kalshi, finding the company likely violates Washington state law by running an unlicensed online gambling operation.
Judge John McHale granted the injunction on Monday, July 21, following a lawsuit brought by Washington Attorney General Nick Brown. The court found that Washington is likely to succeed in proving Kalshi constitutes an illegal online gambling site under state law – a category of operation prohibited in Washington.

Brown discussed the ruling in an interview with KUOW’s Soundside programme, characterising the case as fundamentally a contest over definitions. ; Washington’s position is that whatever the federal characterisation, .
Preemption Argument Rejected
Central to the ruling’s significance is the injunction and the judge’s finding. According to research into the court record, McHale found against Kalshi’s contention , finding that Kalshi can comply with both federal market rules and Washington’s gambling restrictions simultaneously. .
Next Steps
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Source: KUOW Soundside