In this Nov. 9, 2017, file photo, U.S. President Donald Trump, right, chats with Chinese President Xi Jinping during a welcome ceremony at the Great Hall of the People in Beijing. Tensions between the world’s two biggest economies intensified over the last week. The Trump administration more than doubled tariffs on $200 billion in Chinese imports and spelled out plans to target the $300 billion worth that aren’t already facing 25% taxes. The Chinese have punched back by upping tariffs on $60 billion in U.S. imports. (AP Photo/Andy Wong, File)