IGRA § 2710(d)(7)(A)(ii) Abrogates Tribal Immunity for Suits Brought by Any Indian Tribe to Enjoin Compact-Violating Class III Gaming on Indian Lands

Introduction

In Comanche Nation v. Ware (10th Cir. Apr. 21, 2026), the Comanche Nation sued officials of the Fort Sill Apache Tribe after the Tribe opened the Warm Springs Casino near Lawton, Oklahoma, allegedly diverting customers and profits from Comanche-operated casinos. The Comanche Nation contended the casino was opened in violation of federal law because it was sited on the “Tsalote Allotment,” which the Nation alleged was not validly acquired by the Fort Sill Apache Tribe (and thus not the Tribe’s “Indian lands” for purposes of gaming under the Tribe–Oklahoma compact).

The Nation sought (i) declaratory and injunctive relief under the Indian Gaming Regulatory Act (IGRA) and the Racketeer Influenced and Corrupt Organizations Act (RICO) against tribal officials in their official capacities, and (ii) money damages under RICO against the same officials in their individual capacities. The tribal officials moved to dismiss, invoking tribal sovereign immunity. The district court denied dismissal. The officials took an interlocutory appeal, asserting the denial of immunity was immediately appealable under the collateral-order doctrine.

The key issues on appeal were:

• Whether IGRA abrogates tribal sovereign immunity for the Nation’s official-capacity IGRA claim.
• Whether Ex Parte Young permits the Nation’s official-capacity RICO claim for prospective relief notwithstanding tribal immunity.
• Whether tribal immunity bars the Nation’s individual-capacity RICO damages claims because the Tribe is the “real party in interest.”
• Whether the court had collateral-order jurisdiction to hear the appeal.

Summary of the Opinion

Disposition: AFFIRMED in part and REVERSED in part.

Analysis

1) Precedents Cited

The opinion’s architecture rests on four doctrinal pillars: (i) collateral-order review, (ii) the scope and exceptions to tribal sovereign immunity, (iii) statutory abrogation (especially under IGRA), and (iv) the “real party in interest” distinction between official- and individual-capacity claims.

A. Collateral-order doctrine and appellate jurisdiction

• Cohen v. Beneficial Indus. Loan Corp., 337 U.S. 541 (1949): Provided the foundational collateral-order doctrine invoked to allow immediate appeal of certain non-final orders.
• Will v. Hallock, 546 U.S. 345 (2006): Emphasized the doctrine’s narrow scope as a “practical construction” of § 1291.
• Ray v. Haluch Gravel Co. v. Cent. Pension Fund, 571 U.S. 177 (2014) (quoting Catlin v. United States, 324 U.S. 229 (1945)): Reiterated the baseline definition of a “final decision.”
• KCOM, Inc. v. Emp'rs Mut. Cas. Co., 829 F.3d 1192 (10th Cir. 2016), and United States ex rel. Fiorisce, LLC v. Colo. Tech. Univ., Inc., 130 F.4th 811 (10th Cir. 2025): Supplied the three-part test and stressed the “small” class of collateral orders.
• Breakthrough Mgmt. Grp., Inc. v. Chukchansi Gold Casino & Resort, 629 F.3d 1173 (10th Cir. 2010), and Osage Tribal Council ex rel. Osage Tribe of Indians v. U.S. Dep't of Labor, 187 F.3d 1179-80 (10th Cir. 1999): Established that denial of tribal sovereign immunity is immediately appealable as a collateral order.
• Montoya v. Vigil, 898 F.3d 1056 (10th Cir. 2018), and Lowe v. Town of Fairland, 143 F.3d 1378 (10th Cir. 1998): Supported jurisdiction even when immunity is denied implicitly—i.e., when the issue is clearly presented and the court’s silence effectively denies it.
• Shields Law Grp., LLC v. Stueve Siegel Hanson LLP, 95 F.4th 1251 (10th Cir. 2024): Reinforced the court’s independent obligation to confirm appellate jurisdiction.

These authorities enabled the panel to treat the district court’s silence on IGRA immunity (raised within a Rule 12(b)(7) required-party argument) as an “implicit denial,” ensuring immediate review.

B. Tribal sovereign immunity: scope and exceptions

• Michigan v. Bay Mills Indian Cmty., 572 U.S. 782 (2014): Framed IGRA’s structure and, critically, described IGRA’s abrogation as “partial,” limited to class III gaming “located on Indian lands.”
• Santa Clara Pueblo v. Martinez, 436 U.S. 49 (1978): Anchored tribal sovereign immunity as a “common-law immunity from suit traditionally enjoyed by sovereign powers.”
• Native Am. Dist. v. Seneca-Cayuga Tobacco Co., 546 F.3d 1288 (10th Cir. 2008) (citing Fletcher v. United States, 116 F.3d 1315 (10th Cir. 1997)) and quoting Pennhurst State Sch. & Hosp. v. Halderman, 465 U.S. 89 (1984): Supplied the rule that official-capacity claims against tribal officials are ordinarily claims against the tribe because relief would “operate against” the sovereign.
• Miner Elec., Inc. v. Muscogee (Creek) Nation, 505 F.3d 1007 (10th Cir. 2007): Cited both for waiver principles and for the proposition that tribal immunity is jurisdictional (informing why the court considered Ex Parte Young requirements even if not pressed below).
• Lac du Flambeau Band of Lake Superior Chippewa Indians v. Coughlin, 599 U.S. 382 (2023): Supplied the stringent clear-statement rule for congressional abrogation—intent must be “unmistakably clear in the language of the statute.”

C. Ex Parte Young and limits on prospective suits against officials

• Ex Parte Young, 209 U.S. 123 (1908): The foundational doctrine permitting suits for prospective relief against officials to stop ongoing violations of federal law.
• Crowe & Dunlevy, P.C. v. Stidham, 640 F.3d 1140 (10th Cir. 2011), and Norton v. Ute Indian Tribe of the Uintah & Ouray Rsrv., 862 F.3d 1236 (10th Cir. 2017): Confirmed the Tenth Circuit applies Ex Parte Young to tribal sovereign immunity, but only when suing officials (not tribal entities).
• Verizon Md., Inc. v. Pub. Serv. Comm'n of Md., 535 U.S. 635 (2002) (quoting Idaho v. Coeur d'Alene Tribe of Idaho, 521 U.S. 261 (1997)): Provided the “straightforward inquiry” for Ex Parte Young: ongoing federal-law violation + prospective relief.
• Seminole Tribe of Fla. v. Florida, 517 U.S. 44 (1996): Added that Ex Parte Young may be unavailable if Congress created a “carefully crafted and intricate remedial scheme.”
• Kitchen v. Herbert, 755 F.3d 1193 (10th Cir. 2014), and Joseph A. ex rel. Wolfe v. Ingram, 275 F.3d 1253 (10th Cir. 2002) (citing Prairie Band Potawatomi Nation v. Wagnon, 476 F.3d 818 (10th Cir. 2007)): Supplied the often-dispositive requirement that the defendant official must have “some connection with the enforcement” (or a “particular duty”) related to the challenged conduct.
• “Chamber of Com., 594 F.3d at 760”: Cited for the need for a concrete duty/power nexus, reinforcing that general supervisory authority is not enough.

The panel’s rejection of Ex Parte Young in this case turned on the enforcement-connection requirement (not on whether RICO could ever support prospective relief against tribal officials).

D. Individual-capacity suits and the “real party in interest”

• Hafer v. Melo, 502 U.S. 21 (1991), and Kentucky v. Graham, 473 U.S. 159 (1985) (quoting Monell v. N.Y.C. Dep't of Soc. Servs., 436 U.S. 658 (1978)): Distinguished official- vs. individual-capacity claims and tied immunity to who is substantively targeted by the remedy.
• Lewis v. Clarke, 581 U.S. 155 (2017) (citing Ex parte New York, 256 U.S. 490 (1921)): Made explicit that, in tribal immunity cases, courts look past labels to determine who would be legally bound by the judgment; when the suit seeks to impose individual liability for the defendant’s wrongdoing, tribal immunity does not apply.

E. Statutory interpretation tools (used to read IGRA’s abrogation clause)

• Woods v. Standard Ins., 771 F.3d 1257 (10th Cir. 2014) (citing United States v. Ron Pair Enters., Inc., 489 U.S. 235 (1989)), and Carcieri v. Salazar, 555 U.S. 379 (2009): Supported the primacy of plain text.
• Fin. Oversight & Mgmt. Bd. for P.R. v. Centro de Periodismo Investigativo, Inc., 598 U.S. 339 (2023), FAA v. Cooper, 566 U.S. 284 (2012), and Richlin Sec. Serv. Co. v. Chertoff, 553 U.S. 571 (2008): Informed the clear-statement rule mechanics (if a plausible reading preserves immunity, no abrogation).
• Conn. Nat. Bank v. Germain, 503 U.S. 249 (1992) (quoting Rubin v. United States, 449 U.S. 424 (1981)): Reinforced that unambiguous text ends the inquiry.
• Pueblo of Jemez v. United States, 790 F.3d 1143 (10th Cir. 2015): Confirmed the motion-to-dismiss posture requires accepting well-pleaded allegations as true and drawing reasonable inferences for the plaintiff.
• 3484, Inc. v. NLRB, 137 F.4th 1093 (10th Cir. 2025): Supported waiver of arguments raised for the first time in reply.

F. Pendent jurisdiction and limits of interlocutory review

• Moore v. City of Wynnewood, 57 F.3d 924 (10th Cir. 1995) (citing Snell v. Tunnell, 920 F.2d 673 (10th Cir. 1990)): Defined pendent appellate jurisdiction as limited to issues overlapping an appealable order.
• Cox v. Glanz, 800 F.3d 1231 (10th Cir. 2015) (quoting Armijo ex rel. Chavez v. Wagon Mound Pub. Sch., 159 F.3d 1253 (10th Cir. 1998)): Noted pendent jurisdiction is “generally disfavored.”
• Pearson v. Callahan, 555 U.S. 223 (2009): Cited by appellants for early resolution of qualified immunity, but the panel held it did not create interlocutory jurisdiction where the district court had not ruled.

2) Legal Reasoning

A. IGRA abrogation applies to suits by “a State or Indian tribe”—not merely compact parties

The court treated IGRA’s abrogation clause, 25 U.S.C. § 2710(d)(7)(A)(ii), as the central textual engine: it grants federal jurisdiction over “any cause of action initiated by a State or Indian tribe to enjoin a class III gaming activity located on Indian lands and conducted in violation of any Tribal-State compact.”

The officials argued the phrase “Indian tribe” should be read narrowly to mean only an Indian tribe that is a party to the compact. The panel rejected that view on textual grounds: the statute says “a State or Indian tribe,” with no limiting modifier. Applying the clear-statement rule from Lac du Flambeau Band of Lake Superior Chippewa Indians v. Coughlin, the court nevertheless held the abrogation was “clearly discernable” because the plain language unmistakably includes suits by “a[n] ... Indian tribe.”

In practical effect, the decision recognizes intertribal enforcement standing (subject to ordinary standing requirements not resolved here) when a tribe seeks to enjoin another tribe’s compact-violating class III gaming “located on Indian lands.”

B. “Indian lands” and compact violation treated as pleading-stage questions

The panel emphasized the procedural posture: the case arrived on a motion to dismiss. While the parties disputed whether the casino sat on the Fort Sill Apache Tribe’s Indian lands or (as alleged) on Kiowa lands, the officials conceded the allotment was “Indian lands” in some sense. Because IGRA’s definition encompasses “any lands title to which is ... held in trust by the United States for the benefit of any Indian tribe or individual,” the “Indian lands” element was satisfied regardless of which tribe’s lands were ultimately proven.

For the compact-violation element, the Nation alleged the Tribe’s compact allowed class III gaming “only on its Indian lands as defined by IGRA” and that the casino violated this location restriction because the Tribe’s acquisition/trust status was allegedly invalid. The panel held those allegations were enough to plead a compact violation at the dismissal stage under Pueblo of Jemez v. United States.

C. Ex Parte Young rejected for the official-capacity RICO claim due to lack of connection to the ongoing conduct

Although the Tenth Circuit recognizes Ex Parte Young as a pathway around tribal immunity (Crowe & Dunlevy, P.C. v. Stidham), the doctrine requires suing officials with “some connection” to enforcing or carrying out the challenged conduct (Kitchen v. Herbert; Joseph A. ex rel. Wolfe v. Ingram).

The Nation sought to enjoin the casino’s operation, but (in the panel’s view) pleaded only:

• general supervisory descriptions of governing-board roles, and
• gaming-commission duties to “ensur[e] compliance” with gaming laws.

The court found that “ensuring compliance” or having generalized governance authority is not the same as being charged with operating the casino, and the complaint did not tie these specific officials to the ongoing operation in the way Ex Parte Young requires. Therefore, tribal immunity barred the official-capacity RICO claim for prospective relief.

D. Individual-capacity RICO damages claims survive tribal immunity because the Tribe is not the real party in interest

Applying Lewis v. Clarke, the panel asked “who may be legally bound by the court’s adverse judgment.” Because the Nation sought damages from the officials personally for an alleged racketeering conspiracy, the judgment would bind the individuals, not the Tribe. That made the officials the real parties in interest; tribal immunity was unavailable as a defense.

The officials attempted to pivot to qualified immunity, but the panel held it lacked interlocutory jurisdiction to consider qualified immunity because the district court had not ruled on it. The appeal was tethered to the denial of tribal immunity, and the court declined to exercise pendent jurisdiction (Cox v. Glanz; Moore v. City of Wynnewood).

3) Impact

• Expanded practical reach of IGRA’s abrogation clause: By holding that “any cause of action initiated by a State or Indian tribe” includes tribes not party to the compact, the decision invites more intertribal IGRA litigation, especially in competitive gaming markets where one tribe’s location theory affects another tribe’s revenues.
• Sharper pleading demands for Ex Parte Young against tribal officials: Plaintiffs seeking to enjoin ongoing conduct under RICO (or other federal law) must plead a concrete, official-specific connection to the ongoing violation—general oversight and compliance roles may be insufficient.
• Individual-capacity exposure for tribal officials in damages actions: Consistent with Lewis v. Clarke, the opinion underscores that tribal immunity does not automatically shield officials from personal-capacity damages claims alleging personal wrongdoing, even where conduct occurs in an official setting.
• Interlocutory practice: The case is a reminder that appellate courts may treat “silence” as an implicit immunity denial (Montoya v. Vigil), and that defendants should raise qualified immunity squarely in the district court if they want immediate review later.

Complex Concepts Simplified

• Tribal sovereign immunity: A default rule that tribes (and often tribal officials sued in their official capacity) cannot be sued unless the tribe waives immunity or Congress clearly abrogates it.
• Abrogation vs. waiver: “Waiver” is the tribe’s choice to consent to suit; “abrogation” is Congress removing immunity by statute with unmistakably clear language.
• Official-capacity vs. individual-capacity suits: Official-capacity suits are effectively against the government entity; individual-capacity suits seek to hold the person personally liable. Immunity turns on the “real party in interest”—who would be legally bound by the judgment (Lewis v. Clarke; Kentucky v. Graham).
• Ex Parte Young: A doctrine allowing suits against officials (not the sovereign) for forward-looking relief to stop ongoing violations of federal law—but only when the named official has a meaningful connection to the challenged enforcement or conduct.
• Collateral-order doctrine: A narrow exception allowing immediate appeal of certain orders (like immunity denials) even though the case is not finished.
• Pendent appellate jurisdiction: A discretionary tool to hear additional issues alongside an appealable one; it is “generally disfavored” and typically requires overlap with the appealable order.

Conclusion

Comanche Nation v. Ware establishes (within the Tenth Circuit) a consequential reading of IGRA’s abrogation clause: § 2710(d)(7)(A)(ii) permits an injunction suit brought by “a[n] ... Indian tribe” even when that plaintiff tribe is not a party to the defendant tribe’s compact—so long as the suit otherwise seeks to enjoin class III gaming “located on Indian lands” and “conducted in violation” of a compact. At the same time, the court tightened the functional requirements for Ex Parte Young in the tribal context by insisting on a specific nexus between the named officials and the ongoing operation to be enjoined. Finally, the court reaffirmed that tribal immunity does not bar individual-capacity damages claims when the individuals are the real parties in interest, while declining to reach qualified immunity absent a district-court ruling.