ALLIANCE FOR THE WILD ROCKIES v. SALAZAR

Plaintiff environmental groups seek to enjoin the implementation of a statute, Section 1713 of the 2011 Appropriations Act, that orders the Secretary of the Interior to remove a portion of a distinct population of gray wolves from the protections of the Endangered Species Act ("ESA") without regard to any statute or regulation that might otherwise apply. Section 1713 effectively undid an earlier district court decision that found that such an action by the government, a "partial delisting," would violate the ESA. Plaintiffs brought this action contending that Section 1713 violates the separation of powers. The district court rejected plaintiffs' claims on the ground that Congress had acted within its constitutional authority to change the laws applicable to pending litigation. Because this case is controlled by Robertson v. Seattle Audubon Society, 503 U.S. 429 (1992), we affirm.

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