陈伯达
During the Second Plenary Session of the 9th Central Committee, held in Lushan from August–September 1970, Mao became uncomfortable with Lin's growing power, and began to maneuver against Lin by undermining his supporters and attacking some of Lin's suggestions at the conference. At the Second Plenum, Lin advocated that Chairman Mao take the position of President, which had not been filled in since the removal of Liu Shaoqi, but Mao dismissed this appeal, suspecting Lin of using it to increase his own power. Mao did not attack Lin directly, but showed his displeasure by attacking Lin's ally, Chen Boda, who was quickly disgraced. Lin kept his position, but the events of the Lushan Conference revealed a growing distrust between Lin and Mao.