Cornell Law professor Michael C. Dorf comments on a recently filed petition in the U.S. Supreme Court presenting the question whether Congress had the constitutional authority to ban cockfighting in Puerto Rico. Professor Dorf explains why the Court is unlikely to agree to hear the case, but he points out that the case presents a broader issue of laws that proscribe one unpopular form of cruelty to animals (e.g., cockfighting), even as the vast majority of the law’s supporters routinely demand animal products that come from the infliction of suffering on a much more massive scale—the meat and dairy industries.