"[179]
When Wilson proposed establishment of a League of Nations, Taft expressed public support. He was the leader of his party's activist wing, and was opposed by a small group of senators who vigorously opposed the League. Taft's flip-flop on whether reservations to the Versailles Treaty were necessary angered both sides, causing some Republicans to call him a Wilson supporter and a traitor to his party. The Senate refused to ratify the Versailles pact.[180]

Chief Justice (1921–1930)
Further information: Taft Court
Appointment
Chief Justice Taft, c. 1921
During the 1920 election campaign, Taft supported the Republican ticket—Harding (by then a senator) and Massachusetts Governor Calvin Coolidge; they were elected.[181] Taft was among those asked to come to the president-elect's home in Marion, Ohio to advise him on appointments, and the two men conferred there on December 24, 1920. By Taft's later account, after some conversation, Harding casually asked if Taft would accept appointment to the Supreme Court; if Taft would, Harding would appoint him. Taft had a condition for Harding—having served as president, and having appointed two of the present associate justices and opposed Brandeis, he could accept only the chief justice position. 