This Act may be cited as the American Sovereignty and Species Protection Act of 2025.

(a) Limitation on listing of nonnative species Section 4(a) of the Endangered Species Act of 1973 (16 U.S.C. 1533(a)U.S. Code — Title 16, Section 1533(a)View official source on GovInfo) is amended by adding at the end the following: (4) Nonnative species The Secretary may not determine that a species is an endangered species or a threatened species pursuant to this section if such species is not native to the United States.. (b) Limitation on provision of certain financial assistance Section 8(a) of the Endangered Species Act of 1973 (16 U.S.C. 1537(a)U.S. Code — Title 16, Section 1537(a)View official source on GovInfo) is amended— (1) by striking As a demonstration of and inserting the following: (1) In general As a demonstration of; (2) by striking (which includes, but is not limited to, the acquisition, by lease or otherwise, of lands, waters, or interests therein); and (3) by adding at the end the following: (2) Prohibition on purchasing land in a foreign country No financial assistance provided under paragraph (1) may be used to acquire, by lease or otherwise, lands, waters, or other interests in a foreign country..