Jefferson's authorship of the original draft of the Kentucky resolutions of 1798 is made the basis of Von Holst's contention that he was the father of the doctrine of nullification. This, however, is something of an exaggeration. He is more accurate when he refers to the doctrine as being as old as the Constitution itself and the outgrowth of the circumstances of the time. The prevalent conception of the state as a check upon the Federal government derived support, as we have seen, from the efforts of the framers of the Constitution themselves to give it an interpretation that would remove as far as possible the obstacles to its ratification by allaying the fears and jealousy of the states. The idea that the state government could oppose and resist an unconstitutional exercise of authority by the Federal government was widely accepted as a general principle, although little attention had been given to the practical application of the doctrine. Jefferson merely gave definite form to what had been a more or less vague conception by showing how the constitutional checks upon the Federal government could be made effective. The best statement of this doctrine, however, is to be found in the works of John C. Calhoun, whose Disquisition on Government and Discourse on the Constitution of the United States are a masterly defense of the system of checks and balances. He had no sympathy with what would now be called popular government. His point of view was essentially aristocratic, and he frankly avowed it. He recognized the fact that under the existing social organization the interests of all classes are not the same; that there is a continual struggle between them; and that any interest or combination of interests obtaining control of the government will seek their own welfare at the expense of the rest. This, he claimed, made it necessary to so organize the government as to give the minority the means of self-protection. To give to the minority this constitutional power would tend to prevent the selfish struggle to obtain possession of the government, since it would deprive the majority of all power to aggrandize themselves at the expense of the minority. The very essence of constitutional government, according to his view, was the protection afforded to the minority through the limitation of the power of the majority. To accomplish the true end of constitutional government, which is the limitation of the power of the numerical majority, it is necessary, he contended, that the various classes or interests should be separately represented, and that each through its proper organ should have a veto on the acts of the others. In a government so organized no measure could be enacted into law and no policy enforced, unless it had received the assent of each element recognized in the Constitution. This method of taking the sense of the community, which required the concurrence of its several parts, he termed that of the concurrent majority.