As theory and practice conspire to prove that the power of procuring revenue is unavailing when exercised over the States in their collective capacities, the federal government must of necessity be invested with an unqualified power of taxation in the ordinary modes.
Did not experience evince the contrary, it would be natural to conclude that the propriety of a general power of taxation in the national government might safely be permitted to rest on the evidence of these propositions, unassisted by any additional arguments or illustrations. But we find, in fact, that the antagonists of the proposed Constitution, so far from acquiescing in their justness or truth, seem to make their principal and most zealous effort against this part of the plan. It may therefore be satisfactory to analyze the arguments with which they combat it.
Those of them which have been most labored with that view, seem in substance to amount to this: “It is not true, because the exigencies of the Union may not be susceptible of limitation, that its power of laying taxes ought to be unconfined. Revenue is as requisite to the purposes of the local administrations as to those of the Union; and the former are at least of equal importance with the latter to the happiness of the people. It is, therefore, as necessary that the State governments should be able to command the means of supplying their wants, as that the national government should possess the like faculty in respect to the wants of the Union. But an indefinite power of taxation in the latter might, and probably would in time, deprive the former of the means of providing for their own necessities; and would subject them entirely to the mercy of the national legislature. As the laws of the Union are to become the supreme law of the land, as it is to have power to pass all laws that may be NECESSARY for carrying into execution the authorities with which it is proposed to vest it, the national government might at any time abolish the taxes imposed for State objects upon the pretense of an interference with its own. It might allege a necessity of doing this in order to give efficacy to the national revenues. And thus all the resources of taxation might by degrees become the subjects of federal monopoly, to the entire exclusion and destruction of the State governments.”
This mode of reasoning appears sometimes to turn upon the supposition of usurpation in the national government; at other times it seems to be designed only as a deduction from the constitutional operation of its intended powers. It is only in the latter light that it can be admitted to have any pretensions to fairness. The moment we launch into conjectures about the usurpations of the federal government, we get into an unfathomable abyss, and fairly put ourselves out of the reach of all reasoning. Imagination may range at pleasure till it gets bewildered amidst the labyrinths of an enchanted castle, and knows not on which side to turn to extricate itself from the perplexities into which it has so rashly adventured. Whatever may be the limits or modifications of the powers of the Union, it is easy to imagine an endless train of possible dangers; and by indulging an excess of jealousy and timidity, we may bring ourselves to a state of absolute scepticism and irresolution. I repeat here what I have observed in substance in another place, that all observations founded upon the danger of usurpation ought to be referred to the composition and structure of the government, not to the nature or extent of its powers.
January 1, 1788