FILE - In this Oct. 29, 1997, file photo, U.S. President Bill Clinton and Chinese President Jiang Zemin toast during their state dinner at the White House. Another visited Disneyland and Hollywood. Chinese President Xi Jinping’s trip to the U.S. mid-September, 2015, is the latest in a string of visits made over the years by China’s leaders since formal diplomatic relations were established between Washington and Beijing in 1979. (AP Photo/Greg Gibson, File)