BEIJING (AFP) - A senior Chinese politician whose brother defected to the US in a major spy scandal was on Monday elected as chairman of the country’s highest-profile advisory organisation, state media reported. Yu Zhengsheng, who ranks as number four in the Communist Party’s ruling seven-member Politburo Standing Committee, was made head of the Chinese People’s Political Consultative Conference, the Xinhua news agency said. He is regarded as one of the party’s “princelings” but has had to overcome major setbacks during his career. As well as the 1985 defection of his brother Yu Qiangsheng, an intelligence official, his father Yu Qiwei was also once married to Mao Zedong’s fourth wife.