Washington Judge Orders Shutdown of Kalshi Prediction Market
Washington state court issues injunction halting Kalshi over alleged illegal gambling.
Why it matters: This ruling escalates regulatory scrutiny on prediction markets, forcing legal teams to navigate complex state-federal conflicts and compliance risks for novel financial platforms.
- July 21, 2026: King County Superior Court grants preliminary injunction against Kalshi.
- Court finds Kalshi likely violated Washington Gambling Act and Consumer Protection Act.
- Final order expected August 5, 2026, barring Kalshi's operations in Washington.
- Similar state rulings in Michigan and Nevada restrict Kalshi's market offerings, intensifying multi-state legal battles.
On July 21, 2026, a King County Superior Court judge in Washington issued a preliminary injunction against Kalshi, a prediction market platform, determining that it likely violated the state’s Gambling Act and Consumer Protection Act by operating an illegal gambling operation. The court's final ruling to permanently prohibit Kalshi from resuming these operations in Washington is scheduled for August 5, 2026.More
This injunction adds to a growing list of state-level legal challenges against Kalshi. In Michigan, a judge issued a temporary restraining order on June 30, 2026, requiring Kalshi to stop offering contracts on sporting events within the state. Earlier in March 2026, a Nevada judge barred Kalshi from offering event-based contracts on sports, elections, and entertainment without proper gaming licenses through a 14-day restraining order. Details
Kalshi has contended that its operations comply with federal law across all 50 states, a claim challenged by state regulators. Nick Brown, Washington Attorney General, stated, "This victory is the first step toward holding Kalshi accountable for their brazen violations of Washington law." Nevada Gaming Control Board Chairman Mike Dreitzer remarked, "Kalshi has repeatedly stated that its operations are legal in 50 states, which is clearly not true."
The legal friction arises amid conflicting jurisdictional interpretations. In April 2026, the Third Circuit Court ruled that states lack authority to regulate sporting event contracts on platforms like Kalshi, assigning regulatory control exclusively to the Commodity Futures Trading Commission (CFTC).More info This ruling contrasts sharply with recent state enforcement actions, signaling continued legal uncertainty and potential for prolonged state-federal regulatory disputes.
By the numbers:
- July 21, 2026 — Washington court grants preliminary injunction against Kalshi
- August 5, 2026 — Final Washington court order expected to prohibit Kalshi
- June 30, 2026 — Michigan judge issues temporary restraining order against Kalshi
- March 2026 — Nevada judge issues 14-day restraining order against Kalshi
Yes, but: While states like Washington push to regulate or shut down Kalshi's operations, a federal appellate court decision limits state jurisdiction, creating legal complexity around regulatory authority.
What's next: Washington's final order on Kalshi is due August 5, 2026, potentially prompting appeals and further litigation that will clarify the scope of state vs. federal regulatory control.