Had this state of things, which followed immediately after the inauguration of our new government, found us still under the Confederation, there can be no doubt that our condition would have afforded to the Revolutionary party in France the means not only of disseminating their principles among us, but also of overturning any of the institutions of the weaker States which might have stood in the way of their acquiring an influence in America. Yet what form or principle of government is there in the world, that more imperatively requires all foreign or external influence to be repelled, than our own republican system, of which it is a cardinal doctrine that every institution and every law must express the uncontrolled and spontaneous will of a majority of the people who constitute the political society? Other governments may be upheld by the interference of their neighbors; other systems may require, and perhaps rightfully admit, foreign influence. Ours demand an absolute immunity from foreign control, and can exist only when the authority of the people is made absolutely free. That their authority should be made and kept free to act upon the principles that enable it to operate with certainty and safety, it requires the guaranty of a system that rests upon the same principles, is committed to the same destiny, is itself constituted by American power, and is created for the express purpose of preserving the republican form, the theory and the right of self-government.
Such was the purpose of the framers of the Constitution, when, in this early stage of their deliberations, they determined that a republican constitution should be guaranteed by the United States to each of the States.[46] The object of this provision was, to secure to the people of each State the power of governing their own community, through the action of a majority, according to the fundamental rules which they might prescribe for ascertaining the public will. The insurrection in Massachusetts, then just suppressed, had made the dangers that surround this theory of government painfully apparent. It had demonstrated the possibility that a minority might become in reality the ruling power. Fortunately, no foreign interference had then intervened; but a very few years only elapsed, before a crisis occurred, in which the institutions of the States would have been quite unable to withstand the shocks proceeding from the French Revolution, if the government of the Union had not been armed with the power of protecting and upholding them.