Kleppe v. New Mexico
Summary: The state of New Mexico challenged the constitutionality of the Wild Free-Roaming Horses and Burros Act after they were ordered by the U.S. government to recover several wild horses they had rounded up from public lands within their state and sold at auction in violation of the WFRHBA. The Supreme Court upheld the Act, finding it to be a valid exercise of federal power under the Article IV Property Clause of, which gave Congress the power to protect wildlife on state lands, state law notwithstanding.
The state of New Mexico challenged the constitutionality of the Wild Free-Roaming Horses and Burros Act after they were ordered by the U.S. government to recover several wild horses they had rounded up from public lands within their state and sold at auction in violation of the WFRHBA. The Supreme Court upheld the Act, finding it to be a valid exercise of federal power under the Article IV Property Clause of, which gave Congress the power to protect wildlife on state lands, state law notwithstanding.