 By the early 1930s, Zhou was recognized as the "de facto" leader of the CCP, and exercised superior influence over other members of the CCP even when sharing power with Bo and Braun.In the months following the January 1935 Zunyi Conference, in which Bo and Braun were removed from senior positions, Zhou mostly retained his position because he displayed a willingness to display responsibility, because his tactics in defeating Chiang's Fourth Encirclement Campaign were recognized as being successful, and because he supported Mao Zedong, who was gaining influence inside the Party