Beijing’s former liaison office chief in Hong Kong, Zheng Yanxiong, has returned to the nation’s capital and is expected to take up a senior role in the country’s top legislative body, the Post has learned. Two sources familiar with the matter said Zheng, who was abruptly removed as director of Beijing’s liaison office in Hong Kong on May 31, will be appointed Executive Deputy Director of the National People’s Congress Education, Science, Culture and Health Committee. This means he will continue...