Hu Jintao denounced during the Cultural Revolution, an event that (together with his relatively humble origins) apparently had a deep effect upon Hu, who diligently tried to clear his father's name. He joined the Communist Party of China (CPC) in April 1964 and began to work as an engineer in July 1965 after he graduated from the Water Conservancy Engineering Department at Tsinghua University, where he majored in the study of hub hydropower stations. During his time at Tsinghua, he met his wife Liu Yongqing. In 1968, Hu volunteered for his service in Gansu and worked on the construction of Liujiaxia Hydroelectric
Hu Jintao Jiang would retain significant influence because Hu was not associated with Jiang's influential Shanghai clique, to which six out of the nine members of the all-powerful Standing Committee were believed to be linked. However, later developments show that many of its members have shifted their positions. Zeng Qinghong, for example, moved from a disciple of Jiang to serving as an intermediary between the two factions. In 2003, Jiang was also re-elected to the post of Chairman of the Central Military Commission of the CPC, a post from which Deng Xiaoping was able to wield power from behind the scenes as