Kalshi and Polymarket say their prediction markets are not subject to gambling laws and taxes. The casino industry is lobbying to shut them down as a wave of court cases take on the question.​Kalshi and Polymarket say their prediction markets are not subject to gambling laws and taxes. The casino industry is lobbying to shut them down as a wave of court cases take on the question. ​NYT > Business [ SOBAN NEWS: International and National ]