King County court grants preliminary injunction against Kalshi over sports contracts
Regulation · SectorWire deskSource published
Summary
A King County Superior Court judge granted a preliminary injunction against Kalshi, finding the prediction market operator is likely violating Washington's gambling laws. The judge rejected Kalshi's argument that federal commodities law blocks state enforcement. The injunction was filed on Monday.
Why it matters
The ruling lets Washington enforce its gambling laws against Kalshi's sports contracts while the case proceeds, testing state authority over prediction markets.
Cite as: SectorWire, “King County court grants preliminary injunction against Kalshi over sports contracts”, 21 July 2026, https://sectorwire.news/item/washington-court-grants-preliminary-injunction-against-kalshi/