Case: 25-7516, 01/30/2026, DktEntry: 49.2, Page 9 of 41
(collectively, “Tribal Amici”) respectfully submit this brief in support of Defendants-Appellees. 2 As further described in the Tribal Amici’s Motion for Leave, the Amici Tribal Organizations advocate on behalf of tribal government interests. The Amici Tribes are 24 federally recognized Indian tribes, each of which are separate and distinct tribal government with the sovereign authority to conduct and regulate gaming activities on its Indian lands. 25 U.S.C. § 2703(5). Together, all the Tribal Amici all have a shared, strong interest in this case because of its potential to significantly impact their or their member tribes’ sovereign rights regarding gaming on Indian lands, as well as Indian gaming and tribal governmental revenue as a whole. INTRODUCTION KalshiEX, LLC (“Kalshi”) comes before this Court and asks it to wholly abandon the national policy of state and tribal sports-betting regulation and to turn decades of federal law on its head. The Court should not be persuaded to do so,
2 Counsel for the Defendants-Appellees and Intervenor Defendant-Appellee have consented to the filing of this brief. Counsel for the Plaintiff-Appellant has indicated that it is not opposed. No person (including a party or party’s counsel) other than Tribal Amici and their counsel contributed money to fund the preparation and submission of this brief.
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