https://apnews.com/3589b69bab0e4ecbb1748196a89f8c8b > BEIJING (AP) — China's economy czar, Vice Premier Liu He, will visit Washington on Jan. 30-31 for talks aimed at ending a costly tariff war over U.S. complaints about Beijing's technology ambitions. > The announcement Thursday that the official in charge of the Chinese side of the negotiations will participate in person is a possible sign of progress following talks in Beijing this month between lower-level officials.