WASHINGTON/BEIJING: Senior Chinese trade negotiator Li Chenggang is expected to travel to Washington this week to meet US officials, a United States government spokesperson confirmed. Li, China's international trade representative and a key negotiator alongside economy tsar He Lifeng, may meet deputy-level US government officials, the spokesperson said, adding that the visit was not part of a formal negotiating session. The Wall Street Journal first reported on Monday (Aug 25) that Li would