The seventh article admits for twelve years the ships of France and Spain into the ceded territory, free of foreign duty. This is giving a commercial preference to those ports over the other ports of the United States; because it is well known that a duty of forty-four cents on tonnage, and ten per cent. on duties, are paid by all foreign ships or vessels in all the ports of the United States. If it be said we must repeal those laws, and then the preference will cease, the answer is, that this seventh article gives the exclusive right of entering the ports of Louisiana to the ships of France and Spain, and if our discriminating duties were repealed this day, the preference would be given to the ports of the United States against those of Louisiana, so that the preference, by any regulation of commerce or revenue, which the constitution expressly prohibits from being given to the ports of one State over those of another, would be given by this treaty, in violation of the constitution. I acknowledge, if Louisiana is not admitted into the Union, and that if there is no promise to admit her, then this part of our argument will not apply; but, in declaring these to be facts, my opponents are driven to acknowledge that the third article of this treaty is void, which answers every purpose which I wish to establish, that this treaty is unconstitutional and void, and that I have, consequently, a right to withhold my vote from any bill which shall be introduced to carry it into effect. I acknowledge, sir, that my opinion ever has been, and still is, that when a treaty is ratified by the constituted authorities, and is a constitutional treaty, every member of the community is bound by it, as a law of the land; but not so by a treaty which is unconstitutional. The terms of this treaty may be extravagant and unwise, yet, in my legislative capacity, that can form no excuse for an opposition; we may have no title, we may have given an enormous sum, we may have made a silly attempt to destroy the discriminating duties, yet, if the treaty be not unconstitutional, every member of the Government is bound to carry it into effect. Mr. BRECKENRIDGE observed, that he little expected a proceeding so much out of order would have been attempted, as a re-discussion of the merits of the treaty on the passage of this bill; but as the gentlemen in the opposition had urged it, he would, exhausted as the subject was, claim the indulgence of the Senate in replying to some of their remarks.