See Jacobson v. Massachusetts, 197 U.S. 11, 22 (1905) ("Although th[e] preamble indicates the general purposes for which the people ordained and established the Constitution, it has never been regarded as the source of any substantive power conferred on the government of the United States, or on any of its departments."); see also United States v. Boyer, 85 F. 425, 430–31 (W.D. Mo. 1898) ("The preamble never can be resorted to, to enlarge the powers confided to the general government, or any of its departments. It cannot confer any power per se. It can never amount, by implication, to an enlargement of any power expressly given. It can never be the legitimate source of any implied power, when otherwise withdrawn from the constitution. Its true office is to expound the nature and extent and application of the powers actually conferred by the constitution, and not substantively to create them." (quoting 1 JOSEPH STORY, COMMENTARIES ON THE CONSTITUTION OF THE UNITED STATES § 462 (1833)) (internal quotation marks omitted)).
