It is, then, "the unanimous and decided opinion" of the court that the Bank Act is Constitutional. So is the establishment of the branches of the parent bank. Can States tax these branches, as Maryland has tried to do? Of course the power of taxation "is retained by the states," and "is not abridged by the grant of a similar power to the government of the Union." These are "truths which have never been denied."

With sublime audacity Marshall then declares that "such is the paramount character of the constitution that its capacity to withdraw any subject from the action of even this power, is admitted."[838] This assertion fairly overwhelms the student, since the States then attempting to tax out of existence the branches of the National Bank did not admit, but emphatically denied, that the National Government could withdraw from State taxation any taxable subject whatever, except that which the Constitution itself specifically withdraws.

"The States," argues Marshall, "are expressly forbidden" to tax imports and exports. This being so, "the same paramount character would seem to restrain, as it certainly may restrain, a state from such other exercise of this [taxing] power, as is in its nature incompatible with, and repugnant to, the constitutional laws of the Union. A law, absolutely repugnant to another, as entirely repeals that other as if express terms of repeal were used."

In this fashion Marshall holds, in effect, that Congress can restrain the States from taxing certain subjects not mentioned in the Constitution as fully as though those subjects were expressly named.

It is on this ground that the National Bank claims exemption "from the power of a state to tax its operations." Marshall concedes that "there is no express provision [in the Constitution] for the case, but the claim has been sustained on a principle which so entirely pervades the constitution, is so intermixed with the materials which compose it, so interwoven with its web, so blended with its texture, as to be incapable of being separated from it without rendering it into shreds."[839]

This was, indeed, going far—the powers of Congress placed on "a principle" rather than on the language of the Constitution. When we consider the period in which this opinion was given to the country, we can understand—though only vaguely at this distance of time—the daring of John Marshall. Yet he realizes the extreme radicalism of the theory of Constitutional interpretation he is thus advancing, and explains it with scrupulous care.

"This great principle is that the constitution and the laws made in pursuance thereof are supreme; that they control the constitution and laws of the respective states, and cannot be controlled by them. From this, which may be almost termed an axiom, other propositions are deduced as corollaries, on the truth or error of which ... the cause is supposed to depend."[840]

That "cause" was not so much the one on the docket of the Supreme Court, entitled M'Culloch vs. Maryland, as it was that standing on the docket of fate entitled Nationalism vs. Localism. And, although Marshall did not actually address them, everybody knew that he was speaking to the disunionists who were increasing in numbers and boldness. Everybody knew, also, that the Chief Justice was, in particular, replying to the challenge of the Virginia Republican organization as given through the Court of Appeals of that State.[841]

The corollaries which Marshall deduced from the principle of National supremacy were: "1st. That a power to create implies a power to preserve. 2d. That a power to destroy, if wielded by a different hand, is hostile to, and incompatible with these powers to create and to preserve. 3d. That where this repugnancy exists, that authority which is supreme must control, not yield to that over which it is supreme."[842]

It is "too obvious to be denied," continues Marshall that, if permitted to exercise the power, the States can tax the Bank "so as to destroy it." The power of taxation is admittedly "sovereign"; but the taxing power of the States "is subordinate to, and may be controlled by the constitution of the United States. How far it has been controlled by that instrument must be a question of construction. In making this construction, no principle not declared can be admissible, which would defeat the legitimate operations of a supreme government. It is of the very essence of supremacy to remove all obstacles to its action within its own sphere, and so to modify every power vested in subordinate governments as to exempt its own operations from their own influence. This effect need not be stated in terms. It is so involved in the declaration of supremacy, so necessarily implied in it, that the expression of it could not make it more certain. We must, therefore, keep it [the principle of National supremacy] in view while construing the constitution."[843]