Article I, Section 8, Clause 3:
[The Congress shall have Power . . .] To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes; . . .
Four years later came Addyston Pipe and Steel Co. v. United States, 1 in which the Antitrust Act was successfully applied to an industrial combination for the first time. The agreements in the case, the parties to which were manufacturing concerns, effected a division of territory among them, and so involved, it was held, a
direct restraint on the distribution and hence of the transportation of the products of the contracting firms. The holding, however, did not question the doctrine of the earlier case, which in fact continued substantially undisturbed until 1905, when Swift & Co. v. United States 2 was decided.