The negotiation of treaties was obviously a function that should be committed to the executive alone. But a treaty might undertake to dismember a State of part of its territory, or might otherwise affect its individual interests; and even where it concerned only the general interests of all the States, there was a great unwillingness to intrust the treaty-making power exclusively to the President. Here, the States, as equal political sovereignties, were unwilling to relax their hold upon the general government; and the result was that provision of the Constitution which makes the consent of two thirds of the Senators present necessary to the ratification of a treaty.
But if it was to have these great overruling powers, the Senate must have no voice in the appointment of the executive. There were two modes in which the election might be arranged, so as to prevent a mutual connection and influence between the Senate and the President. The one was, to allow the highest number of electoral votes to appoint the President;[164] the other was, to place the eventual election--no person having received a majority of all the electoral votes--in the House of Representatives. The latter plan was finally adopted, and the Senate was thus effectually severed from a dangerous connection with the executive.
This separation having been effected, the objections which had been urged against the length of the senatorial term became of little consequence. In the preparation of the plan marked out in the resolutions sent to the committee of detail, the Senate had been considered chiefly with reference to its legislative function; and the purpose of those who advocated a long term of office was to establish a body in the government of sufficient wisdom and firmness to interpose against the impetuous counsels and levelling tendencies of the democratic branch.[165] Six years was adopted as an intermediate period between the longest and the shortest of the terms proposed; and in order that there might be an infusion of different views and tendencies from time to time, it was provided that one third of the members should go out of office biennially.[166] Still, in the case of each individual senator, the period of six years was the longest of the limited terms of office created by the Constitution. Under the Confederation, the members of the Congress had been chosen annually, and were always liable to recall. The people of the United States were in general strongly disposed to a frequency of elections. A term of office for six years would be that feature of the proposed Senate most likely, in the popular mind, to be regarded as of an aristocratic tendency. If united with the powers that have just passed under our review, and if to those powers it could be said that an improper influence over the executive had been added, the system would in all probability be rejected by the people. But if the Senate were deprived of all agency in the appointment of the President, it would be mere declamation to complain of their term of office; for undoubtedly the peculiar duties assigned to the Senate could be best discharged by those who had had the longest experience in them. The solid objection to such a term being removed, the complaint of aristocratic tendencies would be confined to those who might wish to find plausible reasons for opposition, and might not wish to be satisfied with the true reasons for the provision.