I say to you, moreover, gentlemen, that that right, under the law of nature, to resist the attempted usurpation of a power which has not been granted by the Constitution, resides, in a State, in the executive government, and necessarily in the Governor of the State; because you will recollect one of the premises upon which we started was, that all the residuary power in the government, beyond what had been expressly ceded to the Government of the United States by the Federal Constitution, is, by the Constitution, reserved to the State; and the Governor of the State is the sentinel upon the watch-tower for the protection of the rights of the State. He is placed in that position to watch the danger from afar. He communicates with the General Government. Any steps taken having reference to the State, pass under his inspection; and he alone has the materials within his reach for knowing the circumstances and deciding upon the facts in regard to the question whether the General Government is acting within the constitutional limit of its powers, or whether it is guilty of any usurpation of power, in any claim of authority it makes with reference to the affairs of the State. Because, in the case I have supposed, of a President elected from the State of Massachusetts, seeking to destroy the commerce of New York, and stationing a fleet off the harbor, it is not likely that a President who was guilty of such wickedness would avow that he did it for the purpose of building up the commerce of Boston and destroying that of New York. No; he would say that he had notice of a hostile invasion--a fleet leaving the coast of Great Britain or of some other maritime power to make a descent upon New York,--that he had notice of some threatened injury to New York, which would make it necessary to station a fleet there, and to prevent vessels from entering or leaving. The Governor alone would have the means of ascertaining whether there was any foundation in truth for that, or whether it was a mere pretence to cover his iniquitous purpose; and in determining the case whether the Federal Government is exceeding its power or not, or acting within the constitutional limit of its power, the Governor has to deal with a compound question of law and fact. He must first read the Constitution of the United States, and ascertain its grant of power, and then compare that with the facts as presented to him; and upon that comparison the jurisdiction is placed in him to decide whether the act of the General Government is within its power, or a transgression of it.