The Casino Association of New Jersey, representing the state's casino industry, has filed an amicus brief in the Third Circuit Court in support of New Jersey's appeal against the preliminary injunction granted to Kalshi. This marks the fifth amicus brief submitted, with contributions also from 60 federally recognized Indian Tribes and nine tribal organizations, the American Gaming Association, states, and the Stop Predatory Gambling group. The tribal brief notably addresses the Indian Gaming Regulatory Act (IGRA) and Rule 40.11(a)(1), countering arguments made by Kalshi's legal team. Hundreds of tribal nations have participated either directly or through representative organizations. Meanwhile, the Trump administration has escalated its challenge to New York's ban on American Indian school mascots by referring the matter to the Justice Department. Education Secretary Linda McMahon has taken a leading role in this effort, which includes fighting to preserve the Massapequa Chiefs mascot. The administration is actively seeking to overturn the prohibition, with Maryland identified as a critical battleground due to judicial skepticism about some of Kalshi's arguments. Legal observers suggest that success in Maryland could be the most immediate path to a favorable outcome.