Casinos and state officials are pushing back against platforms like Kalshi and Polymarket for offering sports wagers without state licenses. This dispute involves federal oversight, state bans, and bipartisan legislation. Platforms list sports outcomes as financial "event contracts" regulated by the federal Commodity Futures Trading Commission (CFTC) rather than state gaming boards. Over 20 states and groups like Atlantic City casinos argue these sites bypass local taxes, consumer protection rules, and age limits.