Page:Herrera v. Wyoming, 587 U. S. (2019) (slip opinion).pdf/2

2 (a) This case is controlled by Mille Lacs, not Race Horse. Race Horse concerned a hunting right guaranteed in an 1868 treaty with the Shoshone and Bannock Tribes containing language identical to that at issue here. Relying on two lines of reasoning, the Race Horse Court held that Wyoming’s admission to the United States in 1890 extinguished the Shoshone-Bannock Treaty right. First, the doctrine that new States are admitted to the Union on an “equal footing” with existing States led the Court to conclude that affording the Tribes a protected hunting right lasting after statehood would conflict with the power vested in those States—and newly shared by Wyoming— “to regulate the killing of game within their borders.” 163 U. S., at 514. Second, the Court found no evidence in the Shoshone-Bannock Treaty itself that Congress intended the treaty right to continue in “perpetuity.” Id., at 514–515. Mille Lacs undercut both pillars of Race Horse’s reasoning. Mille Lacs established that the crucial inquiry for treaty termination analysis is whether Congress has “clearly express[ed]” an intent to abrogate an Indian treaty right, 526 U. S., at 202, or whether a termination point identified in the treaty itself has been satisfied, id., at 207. Thus, while Race Horse “was not expressly overruled” in Mille Lacs, it “retain[s] no vitality,” Limbach v. Hooven & Allison Co., 466 U. S. 353, 361, and is repudiated to the extent it held that treaty rights can be impliedly extinguished at statehood. Pp. 6–11.

(b) Repsis does not preclude Herrera from arguing that the 1868 Treaty right survived Wyoming’s statehood. Even when the elements of issue preclusion are met, an exception may be warranted if there has been an intervening “ ‘change in [the] applicable legal context.’ ” Bobby v. Bies, 556 U. S. 825, 834. Here, Mille Lacs’ repudiation of Race Horse’s reasoning—on which Repsis relied—justifies such an exception. Pp. 11–13.

(c) Applying Mille Lacs, Wyoming’s admission into the Union did not abrogate the Crow Tribe’s off-reservation treaty hunting right. First, the Wyoming Statehood Act does not show that Congress “clearly expressed” an intent to end the 1868 Treaty hunting right. See 526 U. S., at 202. There is also no evidence in the treaty itself that Congress intended the hunting right to expire at statehood, or that the Crow Tribe would have understood it to do so. Nor does the historical record support such a reading of the treaty. The State counters that statehood, as a practical matter, rendered all the lands in the State occupied. Even assuming that Wyoming presents an accurate historical picture, the State, by using statehood as a proxy for occupation, subverts this Court’s clear instruction that treaty protected rights “are not impliedly terminated upon statehood.” Id., at 207. To the extent that the State seeks to rely on historical evi-