People from Xingtai, Hebei. According to Cao's personal information inquiry, Cao is a native of Xingtai, Hebei Province. He is currently a member of the Standing Committee of Chang 'an District Committee of Shijiazhuang City, Hebei Province, and an executive deputy head of the district. On the afternoon of July 24th, 2002/kloc-0, the first session of the 17th National People's Congress in Chang 'an District of Shijiazhuang City was closed, and Cao was elected as the deputy head of the Chang 'an District People's Government.