Mark Carney turned on the charm with Donald Trump at the FIFA World Cup draw as he engaged in frequent banter throughout the event, hunkered down for a 45-minute meeting afterward and drew plaudits for Canada’s “friendship” from the famously mercurial U.S. President. The Prime Minister, who is hoping to persuade Mr. Trump not to pull his country out of the U.S.-Mexico-Canada Agreement, and to negotiate an end to his punishing tariffs, jetted down to Washington Friday to catch the President on a day when he would be in a particularly good mood.