The list of groups demanding that prediction market operator Kalshi stop issuing sports event contracts continues to grow. Anti-gambling groups, including Stop Predatory Gambling (STG), have banded together against the growing prediction market firm, as have Indian tribes through the Indian Gaming Association (IGA). + Unjust, Unjustified: Anti-Gambling groups argue that granting Kalshi a preliminary injunction was unjust and unjustified.