 Complete the following phrase:  In October 1927, soon after catastrophic events regarding the Chinese Revolution of 1925-27, which confirmed the United Oppositions critical analysis of the Communist Partys support for the nationalist Kuomintang, the last United Opposition members were expelled from the Communist Party Central Committee; and in November 1927, Trotsky and Zinoviev were expelled from the Communist Party itself. In December 1927, the 