Nevada and 36 states urge Fourth Circuit to uphold state sports betting control
Nevada, Ohio and a bipartisan coalition of 37 states, alongside the District of Columbia, have asked the Fourth Circuit to reject Kalshi's argument that federal derivatives rules allow sports betting outside state gambling laws. In a brief filed on 22 December in KalshiEx LLC v. Martin, the states argue that federal oversight does not displace state authority; Maryland officials are defending their ability to enforce state law against sports-related event contracts.
The appeal could determine whether prediction-market operators must follow state sports betting licensing and consumer-protection rules.