This case is the latest in a long line of lawsuits in our Circuit regarding the efforts of the Oneida Indian Nation of New York (“the Tribe”) to assert tribal jurisdiction over a portion of its indigenous homeland in central New York State.
Plaintiffs-Appellants—two towns, a civic organization, and several residents of the area near the trust land—filed these lawsuits in an attempt to reverse the land-into-trust decisions. They now appeal from judgments of the Northern District of New York (Lawrence E. Kahn, /.), granting the summary judgment motions of Defendants-Appellants, the United States and several federal officials.
We agree with the District Court that the entrustment procedure generally, and this entrustment in particular, lie within the federal government’s long-recognized “plenary” power over Indian tribes: Neither principles of state sovereignty nor the Constitution’s Enclave Clause—which requires state consent for the broadest federal assertions of jurisdiction over land within a state—prevents the federal government from conferring on the Tribe jurisdiction over these trust lands. We further hold that the Oneida Nation of New York is eligible as a “tribe” within the meaning of 25 U.S.C. §§ 465 and 2201(1) for land to be taken into trust on its behalf.
BACKGROUND
I. Land-into-Trust Procedures (§ 5 of the Indian Reorganization Act)
The origins of this dispute lie in the evolution of federal Indian policy in the late 19th and early 20th centuries. Beginning in the late 19th century, Congress began to partition tribal lands and allocate parcels to individual Indians in a policy known as “allotment.” Cty. of Yakima v.
Because Indians could still sell their allotted lands to non-Indians, however, “many of the early allottees quickly lost their land through transactions that were unwise or even procured by fraud.” Id. at 254,
The IRA therefore authorized the Secretary of the Interior, in her discretion, to acquire land and other property interests “within or without existing reservations ... for the purpose of providing land for Indians.” Pub. L. No. 73-383, § 5, 48 Stat. 984, 985 (1934) (codified at 25 U.S.C. § 465).
II. Factual Background
For more than four decades, the Tribe has clashed with state and local governments and residents in upstate New York over its efforts to regain governmental authority with respect to a portion of its extensive indigenous homeland. Prior opinions of this Court and the Supreme Court have detailed the complex history of the relationship between New York and the Tribe, and in particular their disputes regarding the Tribe’s jurisdiction over its reservation in central New York. See Oneida Indian Nation of N.Y. v. Cty. of Oneida,
The Tribe is a federally recognized Indian tribe and “a direct descendant of the [Oneida Nation], ‘one of the six nations of the Iroquois, the most powerful Indian Tribe in the Northeast at the time of the American Revolution.’” Sherrill,
In a pivotal development, “[w]ith the adoption of the Constitution, Indian relations came exclusively under federal authority.” Oneida III,
In the 1990s, the Tribe began to repurchase New York reservation land in open-market transactions and to use those lands for various commercial enterprises. In those years, the Tribe took the position that because the purchased, parcels lay within the boundaries of the reservation originally occupied by the Oneidas, the properties were exempt from local property taxes. The Tribe opened and operated the Turning Stone Resort Casino on a portion of the newly-purchased land.
The Town of Sherrill eventually moved to evict the Tribe from land within the Town’s boundaries for nonpayment of property taxes. In response, the Tribe sought an injunction bamng both the eviction and the assessment of property taxes. The District Court held, and our Circuit agreed, that the Tribe’s land was exempt from property taxes because it lay within the boundaries of the reservation established for it by the Fort Schuyler and Canandaigua treaties. See Oneida Indian Nation of N.Y. v. City of Sherrill, New York,
But the Supreme Court rejected the Tribe’s claim, reasoning that the Oneidas had as a practical matter lost rights to their land more than two hundred years earlier., See Sherrill,
On April 4, 2005, almost immediately after the Supreme Court’s decision in Sherrill and in accordance with the Court’s suggestion, the Tribe requested that the Secretary of the Interior take more than 17,000 acres of land in central New York into trust for the Tribe. All of the land was already owned by the Tribe. Its government, health, educational, and cultural facilities were located in the tract, as were tribal housing, businesses, and hunting lands, .and the Tribe-operated Turning Stone casino.
III. Procedural History
Plaintiffs-Appellants moved quickly in 2008 to challenge the Secretary’s land-into-trust decision in federal district court. See Upstate Citizens for Equality, Inc. v. United States, No. 5:08-cv-633,
In the following year, while the challenges were still pending, the Supreme Court issued its decision in Carcieri v. Salazar,
The government moved for summary judgment in both cases, asserting the legality of the land-into-trust decision under both the Constitution and the applicable statutes, and its availability with respect to the Tribe. The District Court granted the motions. Town of Verona v. Salazar, No. 6:08-cv-647,
The instant appeals followed.
DISCUSSION
Plaintiffs challenge the Secretary’s decision to take land into trust on behalf of the Oneida Tribe of New York as violative of the Constitution, the Indian Removal Act, and the Indian Land Consolidation Act. We review de novo the District Court’s rejection of those legal arguments on summary judgment. See Citizens Against Casino Gambling in Erie Cty. v. Chaudhuri,
I. Standing
As a threshold matter, the government contends that Plaintiff UCE lacks standing to challenge the land-into-trust decision on appeal because it has dropped some of the claims it pursued before the District Court, where its standing was - undisputed.
Standing is an “irreducible constitutional minimum” that must be satisfied for a federal court to exercise jurisdiction over a case. Chabad Lubavitch of Litchfield Cty., Inc. v. Litchfield Historic Dist. Comm’n,
UCE asserts that it has standing to challenge the Secretary’s action based on harms that it contends are or will be caused to its members by the Tribe’s assertion of jurisdiction over the entrusted land. Among other harms, its complaint asserts that the casino’s continued operation on the entrusted land will cause its members “loss of enjoyment of the aesthetic and environmental qualities of the agricultural land surrounding the casino site,” “loss of tax revenue currently generated by the agricultural land that comprises the casino site,” and “the loss of business and recreational opportunities, such
The government argues that these alleged injuries no longer confer standing on UCE because the- group has now abandoned its claim that the Turning Stone casino operates in violation of the Indian Gaming Regulatory Act (“IGRA”).
We disagree with the government that the lawfulness of the casino’s operations will not be affected by the result in this case. Under the IGRA, Turning Stone is a Class III casino, meaning that it may offer a wide range of gaming activities. 25 U.S.C. § 2703(8). The IGRA allows Class III gaming activities to be conducted “on Indian lands,” however, only if the activities are authorized by “the governing body of the Indian tribe having jurisdiction over ■ such lands” ■ 25 U.S.C. § 2710(d)(1)(A)® (emphasis added). Thus, as we recently observed, “[A]ny tribe seeking to conduct gaming on land must have jurisdiction over that land.” Chaudhuri,
The Supreme Court has already rejected the Tribe’s claim that it may exercise tribal jurisdiction over the Turning Stone land without the Department first taking the land into trust on the Tribe’s behalf. See Sherrill,
Because UCE’s attack on the land-into-trust decision will have repercussions for the lawfulness of the Turning Stone casino’s operations, and because the organization has plausibly alleged that the casino’s operations cause them injury-in-fact (allegations that the government does not dispute), we conclude that UCE has standing to pursue this appeal, and we turn to the merits of the. parties’ substantive arguments.
11. Constitutionality of Land-into-Trust Procedures
A. Scope of Constitutional Authority
UCE contends that the federal government lacks authority under the Constitu
UCE’s argument is at odds with the Supreme Court’s longstanding general view that the federal government’s power under the Constitution to legislate with respect to Indian tribes is exceptionally broad. See United States v. Lara,
UCE urges us to disregard that lengthy line of authority, however, and instead to import restrictions developed with respect to the Interstate Commerce Clause into the Indian Commerce Clause context. In particular, UCE contends that Congress’s “plenary” authority to legislate with respect to Indian tribes—analogous to Congress’s power vis-a-vis interstate commerce—is limited to the regulation of trading activities that cross state borders. Under UCE’s theory, if an Indian tribe’s lands are (like the Tribe’s) located entirely within the boundaries of a single state, then that tribe is subject to state legislation only.
This argument has some superficial appeal. The two commerce-related provisions are tightly intertwined in the constitutional text:
The Congress shall have Power ... To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes.
U.S. Const, art. I § 8, cl. 1, 3. And some historical research suggests that the contemporaneous understanding may have been that Congressional authority over Indian affairs was not so expansive as the word “plenary” suggests. See Adoptive Couple v. Baby Girl, — U.S. -,
But the Supreme Court has already rejected the proposed correspondence between the Interstate and Indian Commerce Clauses. In its 1989 decision in Cotton Petroleum Carp., the Court observed that the purpose of the Interstate Commerce Clause was to “maintain[ ] free trade among the States even in the absence of implementing federal legislation,” whereas the purpose of the Indian Commerce Clause was to “provide Congress with plenary power to legislate in the field of Indian affairs.”
UCE argues in the alternative that § 5 is unconstitutional because the acquisition of land for Indian use is not a “regulation] [of] commerce” within the meaning of the Indian Commerce Clause. Again, however, precedent deprives this argument of any traction. The Supreme Court has ruled that Congress may purchase or exercise eminent domain over land within state boundaries as an exercise of its general constitutional power to regulate commerce. See Monongahela Navigation Co. v. United States,
Both groups of Plaintiffs contend that, even if permitted under Congress’s broad Indian Commerce Clause powers, the land-into-trust procedures violate underlying principles of state sovereignty.
Principles of state sovereignty do impose some limits on Congress’s power, otherwise plenary, over Indian affairs. Thus, in Seminole Tribe v. Florida,
The linchpin of the decision in Seminole' Tribe, however, was the Eleventh Amendment’s express protection of the states from the unconsented-to exercise of federal judicial power. No equivalent constitutional provision shields the states’ exercise of jurisdiction over Indian land within their borders. To the contrary, “[t]he States’ inherent jurisdiction on reservations can of course be stripped by Congress.” Nevada v. Hicks,
The Supreme Court’s 1978 decision in United States v. John is instructive in this regard. John concerned whether the federal government, the Mississippi state government, or both, had jurisdiction to prosecute a Choctaw man for a violent crime committed against a non-Indian on a Choctaw reservation in Mississippi. John,
In an argument similar to that made by Plaintiffs here—although not framed precisely in terms of state “sovereignty”— Mississippi asserted that the federal government lacked the power to displace state criminal law authority over the new reservation lands. It contended that “since 1830 the Choctaws residing in Mississippi have become fully assimilated into the political and social life of the State, and ... the Federal Government long ago abandoned its supervisory authority over these Indians.” Id. at 652,
The Supreme Court conclusively rejected this argument. “[T]he fact that federal supervision over [the Choctaws]' has not been continuous” does not “destroy[] the federal power to deal with them,” it de-dared. Id. at 653,
The Court’s reasoning in United States v. John comports with its later favorable assessment—albeit in dicta—of the land-into-trust procedure and the procedure’s “sensitiv[ity] to the complex inter-jurisdictional concerns that arise” when land is transferred from state to tribal authority, Sherrill,
C. The Enclave Clause
Plaintiffs’ final constitutional challenge rests on text that is known as the Enclave Clause. This rarely invoked constitutional provision provides that Congress has the following power:
[to] exercise exclusive Legislation in all Cases whatsoever, over such District ... as may .... become the Seat of the Government of the United States, and to exercise like Authority over all Places purchased by the Consent of the Legislature of the State in which the Same shall be, for the Erection of Forts, Magazines, Arsenals, dock-Yards and other needful Buildings.
U.S. Const, art I § 8, cl. 17.
Case law construing the clause instructs that state consent is needed only when the federal government takes “exclusive” jurisdiction over land within a state. See Paul v. United States,
When land is taken into trust by the federal government for Indian tribes, the federal government does not obtain such categorically exclusive jurisdiction over the entrusted lands. See Surplus Trading Co. v. Cook,
III. Tribe’s Eligibility for Land-into-Trust Procedures
Plaintiffs’ remaining arguments challenge the government’s interpretation of the terms “Indians” and “tribe” in the IRA and related statutes. In their view, the Oneida Indians of New York are not a “tribe” eligible to be the beneficiary of land taken into trust by the United States, both because they are excluded from the benefits of the IRA by the terms of that 1934 statute, and because the language of the 1983 Indian Land Consolidation Act does not reach them.
A. Definitions of “Tribe”
We begin by reviewing the applicable statutes. As noted above, § 5 of the IRA authorizes the Secretary of the Interior to acquire land in trust “for the purpose of providing land for Indians.” 25 U.S.C. § 465. The statute defines “Indians” for purposes of this section as “all persons of Indian descent who are members of any recognized Indian tribe now under Federal jurisdiction”; it defines “tribe” as “any Indian tribe, organized band, pueblo, or the Indians residing on one reservation.” 25 U.S.C. § 479.
In 1983, however, acting in response to requests by tribes that had earlier opted out but since changed their views, Congress overrode the tribes’ opt-out votes with the Indian Land Consolidation Act (“ILCA”), Pub. L. No. 97-459, 96 Stat. 2517 (1983) (codified at 25 U.S.C. §§ 2201, et seq.). The ILCA directs that § 5 of the IRA “shall apply to all tribes notwithstanding the [opt-out] provisions of section 478.” 25 U.S.C. § 2202 (emphasis added). The ILCA further defines “tribes” as “any Indian tribe, band, group, pueblo, or community for which, or for the members of which, the United States holds lands in trust.” § 2201(1).
In Plaintiffs’ view, Congress did not intend in 1934 to make the New York Indian tribes eligible for the § 5 land-into-trust procedures established by the IRA. Those procedures, they assert, were intended to remedy the specific effects of the 19th-century allotment policy—and in particular, the Dawes Act of 1887.
The Oneidas lost their land not through the Dawes Act or the allotment policy, but rather through repeated land sales made by the tribe to New York State in violation of federal law. See Sherrill,
In reaching this conclusion, we do-not rely on the IRA’s legislative history, but we note that so much of it as is available provides further confirmation of our conclusion. As UCE points out in its brief, the New York Indians were shut out of the IRA’s land-into-trust provisions in an early draft of the bill. See Hearings Before the Committee on Indian, Affairs on H.R. 7902, 73rd Cong. 133 (1934) (statement of John Collier, Comm’r of Indian Affairs). Commissioner Collier testified that the New York Indians were omitted from the draft because they “[did] not want [land reform] and their condition [was] entirely peculiar.” Id. But that provision was removed from the bill as “unnecessary and inadvisable” later in the legislative process and replaced with the voluntary opt-out procedure of 25 U.S.C. § 478, which was made available to all tribes. Id. at 198. The legislative record is thus consistent with our conclusion, based on the text and scheme of the IRA, see Hess v. Cohen & Slamowitz LLP,
C. Effect of the ILCA
Even if the IRA as passed applied to the Oneidas, Plaintiffs argue, the ILCA does not override opt-out votes except as to “tribes” “for which, or for the members of which, the United States holds lands in trust.” 25 U.S.C, § 2201(1). Observing that the United States did not hold land in trust for the Tribe in 2008 when the Secretary made the ’ land-into-trust decision, Plaintiffs contend that the Oneidas’ 1936 opt-out vote is still valid and that the Tribe is therefore not eligible for the IRA’s land-into-trust procedures.
The United States interprets the IRA and the ILCA differently. The government first contends that the “tribes” referred to in § 2202 of the ILCA (overriding past opt-out votes) should not be limited to groups meeting the narrowest definition of “tribes” presented in § 2201(1) because that reading would incongruously undermine the ILCA’s broad remedial purpose. Section 2201, it says, should instead be governed by the definition of “tribes” set forth in § 479. It further asserts that its view is embraced by agency interpretations that are entitled to this Court’s deference. See 25 C.F.R. § 151.2(b); U.S. Dep’t of the Interior, Office of the Solicitor, The Meaning of “Under Federal Jurisdiction” for Purposes of the Indian Reorganization Act, at 21 (March 12, 2014); New York v. Acting E. Reg’l Dir., Bd. of Indian Affairs, 58 I.B.I.A. 323, 331-34 (2014) (applying broader definition in context of related land-into-trust decision).
i. Deference to Agency Interpretations
We first consider what, if any, deference we owe to the agency pronouncements presented in support of the first argument. We may defer to an agency’s interpretation of the statute it administers only if the statute is ambiguous in relevant part. Estate of Landers v. Leavitt,
The origins of the regulation further support our understanding that § 151.2(b) does not interpret the effect of § 2201(1) on the scope of the agency’s land-into-trust authority. The regulatory definition of “tribe” set forth in § 151.2(b) has not changed since it was promulgated in-1980, before the ILCA’s passage in 1983. See 45 Fed. Reg. 62,034, 62,036 (Sept. 18, 1980). Moreover, although the DOI has amended the C.F.R. Part 151 “Land Acquisition” regulations on one occasion, in 1995, that amendment did not affect § 151.2(b), and the DOI has not revisited Part 151 regulations in light of § 2202, See Land Acquisitions, 45 Fed. Reg. 62,034 (Sept. 18, 1980); 60 Fed. Reg. 32,874 (June 23, 1995). Tellingly, in the Record of Decision, the DOI seemed to rely on the language of § 2202 itself, rather than on any regulation. No one disputes that, in 1980, the government could not take land into trust for tribes that, like, the Oneidas, had opted out of the IRA. Accordingly, we decline to treat § 151.2(b) as reflecting a statutory interpretation to which we owe deference.
Second, we find similarly inapt the Solicitor’s legal opinion of March 2014 and the decision of the Interior Board of Indian Appeals to which the government also points. Both of these analyses focus on the meaning of “under Federal jurisdiction” in the IRA’s definitional provision and the effect of Carcieri v. Salazar,
ii. Interpreting “Tribe”
Because the agency’s proffered interpretations do not- answer the question before us in this litigation, we interpret the statutes de novo.
In general, “statutory definitions control the meaning of statutory words,” Burgess v. United States,
As noted above, Plaintiffs argue that the ILCA’s definition of “tribe” in § 2101(1)— “any Indian tribe, band, group, pueblo, or community for which, or for the members of which, the United States holds lands in trust”—should be read so that “for which ... holds land into trust” applies to “tribe, band, group, [and] pueblo,” not just “community.” Under this reading, a purported tribe would only have its land-into-trust eligibility restored if, at the time the group is seeking to have the United States take land into trust on its behalf, the United States already holds land in trust for that group.
We agree with the government that Plaintiffs’ reading of § 2201(1) is inconsistent with the ILCA scheme and would produce anomalous results. As the Supreme Court has explained, § 2202, “by its terms[,] simply ensures that tribes may benefit from § 465 even if they opted out of the IRA pursuant to § 478, which allowed tribal members to reject the application of the IRA to their tribe.” See Carcieri,
Instead, we read “for which, or for the members of which, the United States holds lands in trust” in § 2201(1) to apply only to “community.” This reading is supported by the last-antecedent rule, most recently reaffirmed in Lockhart v. United States, — U.S.-,
To be sure, a tribe that opted out of the IRA must satisfy both the requirements of § 2201(1) and § 465 to have its land-into-trust eligibility restored. And, under our preferred reading, § 2201(1) affords a broader definition of “tribe” than does its counterpart in the IRA, § 479. Section 479 defines “tribe” as “any Indian tribe, organized band, pueblo, or Indians residing on one reservation,” but limits the term “Indian” to “all persons of Indian descent who are members of any recognized Indian tribe now under Federal jurisdiction.” This definition . of “Indian” restricts § 465’s application. See Carcieri,
We therefore conclude that the United States did not exceed its statutory authority by taking land into trust for the Tribe— a tribe that indisputably qualifies as a “tribe” within our reading of § 2201(1) and, since it was under federal jurisdiction in 1934, within the meaning of § 465 as well.
IV. Authority of Tribal Leadership
Finally, we reject UCE’s cursory argument that the United States may not take land into trust on behalf of the Tribe because of what Plaintiffs allege to be the Tribe’s illegitimate leadership. According to UCE, tribal leader Arthur Raymond Halbritter has improperly restructured tribal governance to protect .his power base. Plaintiffs do not, however, detail how this assertion bears on .their claim that the United States may not take land into trust for the Tribe. They do not, for example, question the validity of the Tribe’s request that land be entrusted on its behalf. Moreover, even if the legitimacy of the tribal government were somehow related to Plaintiffs’ current claims regarding the en-trustment, federal courts “lack authority to resolve internal disputes about tribal law.” Cayuga Nation v. Tanner,
CONCLUSION
In sum, we conclude that the federal government’s plenary power over Indian affairs extends to taking historic reservation land into trust for a tribe. That the entrustment deprives state government of certain aspects of jurisdiction over that land does not run afoul of general principles of state sovereignty, the Indian Commerce Clause, or the specific guarantees of the Enclave Clause. The Tribe became eligible for such an entrustment in 1983, when Congress invalidated the Oneidas’ earlier decision to opt out of the land-into-trust regime, and the Department of the Interior’s 2008 decision (reaffirmed in 2013) to take the land into trust for the Tribe lies within that agency’s statutory authority. For these reasons, we AFFIRM the judgments of the District Court.
Notes
. We will use the term "Tribe” in this Opinion to refer only to the Oneida Indian Nation
, The Tribe is not a party to either of these cases. It moved, however, for leave to file an amicus brief in this consolidated appeal. Upstate Citizens for Equality v. United States, No. 15-1688, Doc. 124 (filed Jan. 29, 2016). The motion is hereby granted.
. Effective September 1, 2016, certain provisions from Chapter 14 of Title 25 of the United States Code have been reorganized and transferred to three new chapters at the end of the Title. See Office of the Law Revision Counsel, Editorial Reclassification Title 25, United States Code, http://uscode.house.gov/ editorialreclassification/t25/index.html. Consistent with the parties’ briefs, the District Court’s opinions, and prior opinions in this area, we use the original numbering of the Chapter 14 subsections. For the reader’s reference, 25 U.S.C. § 465 is now codified at 25 U.S.C. § 5108; 25 U.S.C. § 478 is now codified at 25 U.S.C. § 5125; and 25 U.S.C. § 479 is now codified at 25 U.S.C. § 5129.
. Early uses of the term "reservation” in the field of Indian law referred to land reserved for Indian use from an Indian cession to the federal or state government. Cohen, Handbook § 3.04[2][c][ii]. The term’s use later grew to encompass federally protected Indian tribal lands without regard to their legal origins. Id. Tribal jurisdiction—that is, the rights of the tribe and the federal government to assert jurisdiction over territory, largely displacing state government—generally follows from the land’s reservation status. See Alaska v. Native Vill. of Venetie Tribal Gov’t,
. As we will discuss below, in T 936 the Oneidas elected to opt out of the IRA by a tribal vote.
. The relevant facts of this case are undisputed, and the appeal presents only questions of law. We draw this account of the Oneidas' history largely from prior opinions of the Supreme Court and our Court.
. Congress may "disestablish” a reservation by enacting a law that makes designated tribal land fully alienable. See Alaska,
. New York State and Madison and Oneida Counties filed a similar challenge to the agency’s decision. That lawsuit was settled in 2014. See New York v. Jewell, No. 6:08-cv-644,
. Plaintiffs contested that determination before the District Court, but do not press the challenge on appeal.
. The government makes no challenge to the standing of the Towns or the individual Plaintiffs-Appellants.
. In the District Court, UCE raised a number of claims under the IGRA, see Upstate Citizens for Equality, Inc. v. United States, No. 5:08-cv-633, Doc. 35 at 41-49 (N.D.N.Y. filed Jan. 29, 2009) (amended complaint). On appeal, it has not pursued arguments related to those claims.
. In this context, we understand “tribal sovereignty” to imply "tribal jurisdiction” over the land. See Record of Decision, J.A. 570, 604 (discussing effects of restoring tribal jurisdiction over trust land).
. The Indian Commerce Clause grants Congress the power to regulate “Commerce ... with the Indian Tribes.” U.S. Const, art. I § 8, cl. 3.
. UCE makes a related argument that, even if the Indian Commerce Clause permits land to be taken into trust in some states, it does not apply in New York because of the nature of New York’s pre-Constitution dealings with Iroquois tribes. UCE Br. at 33. This position was rejected by the Supreme Court in Oneida I, however. Oneida I made clear that, for Indian Commerce Clause purposes, the Court will draw no distinction between the federal government’s power vis-á-vis the original states (and New York in particular) and all other states. See Oneida I,
. As noted above, New York State has settled its own challenge to the lawfulness of the land-into-trust decision and no longer contends that the entrustment violates its sovereignty. See New York v. Jewell,
. As used in § 1152, the phrase "Indian country” means, in sum: all land on any Indian reservation that is under federal jurisdiction, whether or not the fee owner is an Indian; dependent Indian communities; and Indian allotments whose Indian titles have not been extinguished. See 18 U.S.C. § 1151 (defining "Indian country” for certain criminal law purposes); Cty. of Yakima,
. Although the clause speaks of land to be “purchased” by the federal government, the clause's reach is not cabined to land that is "purchased ... in the narrow trading sense of
. State laws in place at the time of the federal government’s acquisition of the land may remain in effect, however, as long as they do not interfere with “the carrying out of a national purpose.” James Stewart & Co. v. Sadrakula,
. Plaintiffs assert that our recent decision in Citizens Against Casino Gambling v. Chaudhuri, 802 F.3d 267 (2d Cir. 2015), holds that the state retains no jurisdiction at all over land
. The requirement that a tribe be "now under federal jurisdiction” refers to its status in 1934, when Congress enacted that language as part of the IRA. See Carcieri,
. The law was formally entitled, "An act to provide for the allotment of lands in severalty to Indians on the various reservations, and to extend the protection of the laws of the United States and the Territories over the Indians, and for other purposes.” 24 Stat. 388 (1887).
. The government also urges us to affirm the District Court’s decision on the basis that, . between 2008 (when this lawsuit was filed) and 2013 (when the Department issued its Amended Record of Decision (see J.A. 1571)), the United States took land into trust for the Tribe under the "excess real property” provisions of 40 U.S.C. § 523. See Gov't Br. 62-65. Thus, the government submits, even under Plaintiffs' interpretation of § 2201(1), by 2013 the Tribe was eligible for additional land to be taken into .trust pursuant to § 5 of the IRA. Although we are free to affirm on grounds "not relied upon by the district court,” Olsen v. Pratt & Whitney Aircraft,
