Here in the national capital, under the exclusive jurisdiction of Congress, the FORCE which now maintains this unnatural system is supplied by Congress. Without Congress the “uncontrolled authority” of the master would cease. Without Congress the master would not be master, nor would the slave be slave. Congress, then, in existing legislation, is the power behind, which enslaves our fellow-men. Therefore does it behoove Congress, by proper, instant action, to relieve itself of this painful responsibility. The responsibility becomes more painful, when it is considered that Slavery exists at the national capital absolutely without support of any kind in the Constitution: and here again I answer the Senator from Kentucky [Mr. DAVIS]. Nor is this all. Situated within the exclusive jurisdiction of the Constitution, where State rights cannot prevail, it exists in open defiance of most cherished principles. Let the Constitution be rightly interpreted by a just tribunal, and Slavery must cease here at once. The decision of a court would be as potent as an Act of Congress. And now, as I confidently assert this conclusion, which bears so directly on the present question, pardon me, if I express the satisfaction with which I recur to an earlier period, shortly after I entered the Senate, when, vindicating the principle now accepted, but then disowned, that _Freedom and not Slavery is National_, I insisted upon its application to Slavery everywhere within the exclusive jurisdiction of the Constitution, and declared that Congress might as well undertake to make a king as to make a slave.[220] That argument has never been answered; it cannot be answered. Nor can I forget that this same conclusion, having such important bearings, was maintained by Mr. Chase, while a member of this body, in that masterly effort where he unfolded the relations of the National Government to Slavery,[221] and also by the late Horace Mann, in a most eloquent and exhaustive speech in the other House, where no point is left untouched to show that Slavery in the national capital is an _outlaw_.[222] Among all the speeches in the protracted discussion of Slavery, I know none more worthy of profound study than those two, so different in character and yet so harmonious in result. If authority could add to irresistible argument, it would be found in the well-known opinion of the late Mr. Justice McLean, in a published letter, declaring the constitutional impossibility of Slavery in the National Territories, because, in the absence of express power under the Constitution to establish or recognize Slavery, there was nothing for the breath of Slavery, as respiration could not exist where there was no atmosphere. The learned judge was right, and his illustration was felicitous. Although applied at the time only to the Territories, it is of equal force everywhere within the exclusive jurisdiction of Congress; for within such jurisdiction there is no atmosphere in which Slavery can live.