In the case of Swift & Company v. United States, 1951, the U.S Supreme Court ruled in favor of the government and upheld a lower court's decision that Swift & Company had violated antitrust laws. The meatpacking company was accused by the federal government of conspiring to fix prices and divide markets for their products among themselves, thus restraining interstate commerce. The defendants argued that they were not engaged in interstate commerce because their activities were confined within individual states. However, Justice Holmes delivered an opinion stating that although some operations took place within state boundaries, they formed part of a larger scheme which affected trade between states; hence it fell under federal jurisdiction as per Sherman Antitrust Act.

In the dissenting opinion for Swift & Company v. United States, it was argued that the majority's interpretation of the Sherman Act was overly broad and could potentially criminalize normal business practices. The dissenting justices believed that there should be a clear distinction between anti-competitive behavior and legitimate business strategies. They also expressed concern over potential negative impacts on interstate commerce if businesses were too afraid to engage in normal competitive behaviors due to fear of prosecution under an overly expansive interpretation of antitrust laws. Furthermore, they disagreed with the majority's view that price-fixing agreements constituted per se violations of the Sherman Act, arguing instead for a more nuanced approach which takes into account market realities and economic theory.