Then, in regard to the property of the United States in South Carolina. This has been purchased for a fair equivalent, "by the consent of the legislature of the State," "for the erection of forts, magazines, arsenals," etc., and over these the authority "to exercise exclusive legislation" has been expressly granted by the Constitution to Congress. It is not believed that any attempt will be made to expel the United States from this property by force; but if in this I should prove to be mistaken, the officer in command of the forts has received orders to act strictly on the defensive. In such a contingency the responsibility for consequences would rightfully rest upon the heads of the assailants. Apart from the execution of the laws, so far as this may be practicable, the Executive has no authority to decide what shall be the relations between the Federal Government and South Carolina. He has been invested with no such discretion. He possesses no power to change the relations heretofore existing between them, much less to acknowledge the independence of that State. This would be to invest a mere executive officer with the power of recognizing the dissolution of the confederacy among our thirty-three sovereign States. It bears no resemblance to the recognition of a foreign _de facto_ government, involving no such responsibility. Any attempt to do this would, on his part, be a naked act of usurpation. It is therefore my duty to submit to Congress the whole question in all its bearings. The course of events is so rapidly hastening forward that the emergency may soon arise when you may be called upon to decide the momentous question whether you possess the power by force of arms to compel a State to remain in the Union. I should feel myself recreant to my duty were I not to express an opinion on this important subject.