Writing that allowing Kalshi and other prediction markets to offer sports event contracts that mimic sports betting will “have a significant impact on their or their member tribes’ rights regarding gaming on Indian lands, as well as Indian gaming and tribal governmental revenue as a whole,” a group of more than 65 tribal entities Monday filed an amicus brief in Kalshi’s case against the state of New Jersey.
The group, which refers to itself as the Tribal Amici, asks the court to reverse its preliminary injunction and halt the trading of sports event contracts in New Jersey.
Turns out, the tribes were the start of a flood of amicus briefs backing New Jersey. Tuesday, a group of 34 states, the American Gaming Association, and the Casino Association of New Jersey filed briefs arguing for states’ rights and against allowing Kalshi to operate.
