2026 Membership Book FINAL

Case 3:25-cv-06162-JSC Document 35 Filed 09/04/25 Page 15 of 34

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necessarily includes the Indian lands located in each state, Kalshi is offering class III gaming

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contracts, in conflict with the CEA, that interfere with the regulation of class III Indian gaming in

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accordance with IGRA.

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It is well-settled that IGRA comprehensively regulates the field of Indian gaming and

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establishes that the Tribes and states, under federal oversight, have the exclusive right to regulate

gaming on Indian lands. See , e.g. , 25 U.S.C. § 2702; In re Indian Gaming Related Cases , 331 F.3d

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1094, 1096 (9th Cir. 2003) (“IGRA is an example of ‘cooperative federalism’ in that it seeks to

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balance the competing sovereign interests of the federal government, state governments, and

Indian tribes, by giving each a role in the regulatory scheme.” (quoting Artichoke Joe’s v. Norton ,

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216 F. Supp. 2d 1084, 1092 (E.D. Cal. 2002), aff’d sub nom. Artichoke Joe’s California Grand

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Casino v. Norton , 353 F.3d 712 (9th Cir. 2003)); Michigan v. Bay Mills Indian Cmty. , 572 U.S.

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782, 795 (2014) (“Everything—literally everything—in IGRA affords tools (for either state or

federal officials) to regulate gaming on Indian lands, and nowhere else.”); Gaming Corp. of Am.

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V. Dorsey & Whitney , 88 F.3d 536, 546–47 (8th Cir. 1996). IGRA was enacted in accordance with

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the unique trust relationship between the federal government and Indian tribes, and Congress

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enacted IGRA to alleviate burdens on federal resources and promote tribal sovereignty, tribal self-

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government, and tribal self-determination through tribal economic self-sufficiency, namely,

through tribal gaming. See generally 1 Cohen’s Handbook of Federal Indian Law § 6.04[3] (2025)

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(discussing the history and context of the trust relationship between tribes and the federal

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government); 25 U.S.C. §§ 2701–2702. In contrast to other federal gambling laws, IGRA does not

carve out an exception for contracts offered in accordance with the CEA. Contrast IGRA, 25

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U.S.C. §§ 2701–2721 (establishing that IGRA occupies the field of class III Indian gaming), with

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the Unlawful Internet Gambling Enforcement Act (“UIGEA”), 31 U.S.C. §§ 5361–5367,

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specifically 31 U.S.C. §§ 5362(1)(E)(ii)–(iv) (establishing exemptions for transactions under the

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CEA and excluding such transactions from the definition of “bet” or “wager”).

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Regulations promulgated in accordance with IGRA establish that sports betting constitutes

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class III gaming activity. 25 C.F.R. § 502.4 (“Class III gaming means all forms of gaming that are

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6 NOTICE OF MOTION AND MEMORANDUM OF POINTS AND AUTHORITIES [ Case No.: 25-cv-06162-JSC]

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