Spain blocks Polymarket and Kalshi as it investigates prediction market platforms US states have also tried to regulate Polymarket and Kalshi, but the federal government isn’t having any of it. RelatedNew Jersey has no right to ban Kalshi’s prediction market, US appeals court rulesApril 6, 2026In "Technology"Nevada sues Kalshi for operating a sports gambling market without a licenseFebruary 18, 2026In "Technology"CFTC sues three states for trying to regulate prediction marketsApril 2, 2026In "Technology"