In Shanghai Sun had time to ponder organizational strategy, to conduct the world-wide operations of the Kuomintang officially now _Chung-hua Kê-ming Tang_, or Chinese Revolutionary Party, and to consider types of government and methods of propaganda. He worked with Judge Paul Linebarger, his sympathizer and supporter since 1906, on a biography similar to the campaign biographies of American presidential candidates.[12] At this time he was still devoting himself to the organization of the existing groups in Chinese society for revolutionary purposes. He saw himself as the moral leader of the revolution and simultaneously as the necessary advocate of constitutionalism. He was anxious to implement the ideological revolution but thought that the parliamentary democratic techniques had been designed in the West to accomplish just that end. While he was in Shanghai, the Canton regime carried on a fragmentary existence. In November, 1920, he returned to Canton after his military friends had cleared the way for him. On this occasion the Canton government came forth as a fully civilian regime. Sun was elected Extraordinary President of the Republic of China by the Southern parliament in April, 1921. Using the city of Canton as his base, Sun continued the long series of military expeditions he had led for years, trying to whip the _tuchüns_ at their own game without becoming one himself. He personally went with forces into the field again. In 1922 treason on the part of his chief war-lord supporter drove him out of Canton. Back in Shanghai, he established contact with the representative of the Soviets, Adolf Joffe; both men stipulated the terms of the alliance between the Kuomintang and the Communists.[13]