One can not present a complete gallery of the Senate in the space of a single chapter. I have chosen a few characteristic figures, the leaders past, present, and to come, the small business man who seeks social preferment or the destruction of a title in Washington, such as Calder and Frelinghuysen, the politician who likes to play the game better in the Capitol than at home, like New, the aristocrat who escapes from the boredom of doing nothing into the boredom of a democratic chamber, the gradgrind legislator of whom there are few like Smoot, the half party man, half bloc man like Capper. [Illustration: SENATOR WILLIAM M. CALDER OF NEW YORK] All of these men belong to a party and are limited by that party's weakness, its lack of principles, the caution which it has to use in avoiding the alienation of its loosely held supporters. The party program is something on which all kinds of people can stand. Necessarily the party men in the Senate are tied down to a cause that is largely negative. They can not be other than feeble and ineffective figures. The weakness of parties has led to the emergence of a few outstanding individual Senators who must be examined to see whether around them the new Senate which will come with the shift of power and responsibility to the legislative branch can be built. The most brilliant and interesting of them is Senator Borah, but it is significant that the farm bloc looking for a leader did not turn to him, but chose rather much less significant and effective men. Yet the Idaho Senator seems the natural rallying point for any movement which will give new life and force to the Senate. He is established. He is the most potent single individual in the upper house. So far as there is any opposition to President Harding and his friends, Mr. Borah is that opposition. His is the intelligence which inspires the Democratic party when it consents to be inspired by intelligence. He believes that the revolution has come, not one of street fighting and bomb throwing but a peaceful change which has made the old parties meaningless, destroyed the old authorities and set men free for the new grouping that is to take place. Others in the Senate see this and are frightened. Borah sees it and is glad. His bonds are loosed and he is a vastly braver, sincerer and more effective Senator than ever before.