Canadian Prime Minister Justin Trudeau is returning home after his meeting with Donald Trump without assurances the president-elect will back away from threatened tariffs on all products from the major American trading partner.

Canadian Prime Minister Justin Trudeau says he had an “excellent conversation” with Donald Trump in Florida after the president-elect’s threat to impose significant tariffs on two of America’s leading trade partners raised alarms in Ottawa and Mexico City.

Trump wants to use tariffs as a tool to get Mexico and Canada to help stem the flow of illegal drugs into the U.S., particularly the deadly opioid fentanyl, and also migrants crossing illegally into the U.S. "We discussed many important topics that will ...