FILE - In this July 8, 2017, file photo, U.S. President Donald Trump, left, and China's President Xi Jinping arrive for a meeting on the sidelines of the G-20 Summit in Hamburg, Germany. President Trump has often named Asia, and China and Japan in particular, as a source of American economic woes. A persisting U.S. trade deficit with most Asian countries and the president’s frequent threats to impose sanctions or raise tariffs on exports from the region make trade a fraught issue. (Saul Loeb/Pool Photo via AP, File)