There is another view of this subject, which I deem to be conclusive. The Constitution of the United States provides that “Congress shall have power to exercise exclusive legislation, in all cases whatsoever, over such district (not exceeding ten miles square) as may, by cession of particular States, and the acceptance of Congress, become the seat of the Government of the United States, and to exercise the like authority over all places purchased by the consent of the Legislature of the State in which the same shall be, for the erection of forts, magazines, arsenals, dockyards and other needful buildings.” This is the only clause in the Constitution which authorizes the Federal Government to acquire jurisdiction over any portion of the territory of the States; and this power is expressly confined to such forts, magazines, arsenals, dockyards, and other needful buildings, as the States may consider necessary for the defence of the country. You will thus, Sir, perceive with what jealousy our ancestors conferred jurisdiction upon this Government—even over such places as were absolutely necessary for the exercise of the power of war. This power,—which is the power of self-defence—of self-preservation—the power given to this Government of wielding the whole physical force of the country for the preservation of its existence and its liberties—does not confer any implied jurisdiction over the smallest portion of territory. An express authority is given to acquire jurisdiction, for military and for naval purposes, and for them alone, with the consent of the States. Unless that consent has been first obtained, the vast power of war confers no incidental jurisdiction, even over the cannon in your national fortifications. How, then, can it be contended, with the least hope of success, that the same Constitution, which thus expressly limits our power of acquiring jurisdiction, to particular spots, necessary for the purpose of national defence, should, by implication, as an incident to the power to establish post offices and post roads, authorize us to assume jurisdiction over a road one hundred and thirty miles in length, and over all the other post roads in the country. If this construction be correct, all the limitations upon Federal power, contained in the Constitution, are idle and vain. There is no power which this Government shall ever wish to usurp, which cannot, by ingenuity, be found lurking in some of the express powers granted by the Constitution. In my humble judgment, the argument in favor of the constructive power to pass the sedition law is much more plausible than any that can be urged by the advocates of this bill, in favor of its passage. I beg gentlemen to reflect, before they vote in its favor.