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
Leland Yee Limbaugh mocked Chinese president Hu Jintao during his visit to the White House on his radio show. "Hu Jintao — he was speaking and they weren't translating. They normally translate every couple of words. Hu Jintao was just going ching chong, ching chong cha," said Limbaugh, who imitated Hu's speech. Yee criticized Limbaugh for his remarks: "His classless act is an insult to over 3,000 years of cultural history, and is a slap in the face to the millions of Chinese Americans who have struggled in this country and to a people who constitute one-quarter of the world's population." He