The last time Japan began a new era, then-President George H.W. Bush had the manners to keep trade issues on the back-burner on a ceremonial visit to Japan. Over 25 years later, as the Reiwa Era begins, President Donald Trump will visit Tokyo as Emperor Naruhito’s first foreign head of state visitor. He arrives with unfinished business around reducing the U.S. trade deficit with Japan – and with far less concern for dignity and ceremony than his predecessors. Even commentators usually sympathetic with Japan have called for Tokyo to accede to a quick deal to avoid Trump ruining the party.