Sports BettingGambling Insider · Sep 21
The Gambling Wire: Kalshi Enters Tribal Prediction Markets as Polymarket, DraftKings Face Scrutiny
By Chavdar Vasilev•September 21, 2026
The brief
One Tribe moved into prediction markets just days after others won in court, while separate investigations put Polymarket and DraftKings under fresh pressure. Friday and the weekend brought a first-of-its-kind Tribal prediction-market launch, two major investigative reports into leading operators and fresh legal devel…
Original report
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