Donald Trump and Melania Trump will host Xi Jinping and Peng Liyuan together across two days in Washington next week: a White House welcome, a state dinner at which both presidents speak, a private tea, and a tour of the United States’ founding documents.Senior US officials set out the programme late Friday and said the pageantry will sit beside talks on artificial intelligence, a trade truce that expires in November, rare earths, fentanyl and detained foreigners.The briefing confirmed much of...