This “Senatorial courtesy” is most marked in the matter of the appointment of officials, where matters go smoothly only because it has been agreed that no proposals shall be made without the approval of the Senators of the state concerned. Every Senator knows that if to-day one local delegate is outvoted, the rebellion may to-morrow be directed against another; and thus many a doubtful appointment, given as hush money or as a reward for mean political services, is approved with inward displeasure by courteous colleagues merely in order to save the principle of individual omnipotence. There is no doubt that in this way the individual Senator comes to have much more power than does a single Representative. The latter is really the member of a party, with no special opportunities for satisfying his individual wishes; while the Senator may have his personal points of view, and is really an independent factor.
If to-day the Senate, contrary to the expectation of former times, really plays a much more important rôle before the public than the House, this is probably not because more important functions are given to the Senate, but because it is composed of persons of whom every one has peculiar significance in the political situation, while the House is nothing but a mass-meeting with a few leaders. This increased importance before the public eye works back again on the Senator’s opinion of himself, and the necessary result is a steady increase in the Senate’s aspirations and the constant growth of its rights. Perhaps the most characteristic exhibition of this has been the gradual evolution of the part taken by the Senate in the matter of foreign treaties. The Constitution requires the ratification of the Senate, and the original construction was that the Administration should present a treaty all made out, which the Senate had to accept or reject as it stood. But soon the Senate arrogated to itself the right to amend treaties, and then it came about that the Senate would never accept a treaty without injecting a few drops of its own diplomatic wisdom. It might be that these would be merely a change of wording, but just enough to let the President feel the Senatorial power. The result has been that the treaties that are now presented to the Senate are called nothing but proposals.