The Tribe says DraftKings’ Florida products replicate a sportsbook and breach its exclusive rights under the 2021 gaming compact.
The company stopped taking new sports-event contracts in the state while keeping culture-event markets available.
Jaime Costello left on the day of the statement, as the council faces continuing division over Kalshi’s membership and funding.
Sports bettors showed the strongest mathematical capability, but prediction-market users’ confidence exceeded their tested performance.
The state seeks to shut Polymarket US, recover alleged illegal gains and impose penalties over sports and event contracts.
The problem-gambling council says it remains neutral on legality while pressing for age checks, self-exclusion and risk disclosures.
The Ohio regulator joined Michigan and Nevada in withdrawing, while Massachusetts voted unanimously to retain its membership for now.
The advocacy group said the U.S. Open’s prediction-market deal normalised gambling for junior players and young fans.
Jennifer Grant Weinandy says the products look like betting, are hard to police on phones and deserve oversight.
The state also served nearly 30 subpoenas as it widened a crackdown on unlicensed wagering.
The petition lands after a Ninth Circuit split and says prediction platforms should still answer to state gambling laws.
The panel said the products are sports bets, not swaps, and that federal law does not block state enforcement.
State officials say the company’s event contracts amount to betting and cannot be offered without authorization
They say the move would drain tribal gaming revenue and clash with federal Indian gaming law.
The state group says the prediction-market deal no longer fits its mission and carries special risks for young people.
Katie Mibaum will lead the Aug. 17 session on warning signs, risk factors and support services.
The complaint says event contracts are wagers in disguise and invokes a centuries-old recovery law to seek losses and damages.
State officials say the prediction market company ran unlicensed sports wagers and let younger users take part.
The bookmakers’ association says Polymarket-style contracts amount to exchange betting and should not escape the country’s gambling rules.
Respondents backed treatment funding, deposit limits and college-athlete protections, while many said they knew little about prediction markets.