Point Roberts, Washington, is the rare U.S. exclave so dependent on Canada’s goodwill that the strain of Trump’s tariff war ...

But Mr. Trump’s criticisms have upended the business-as-usual atmosphere at the border. Map along the Canada-United States border highlighting Coutts, Canada and Sweet Grass, United states.

The tariffs were imposed based on the exaggerated claim that millions of criminals and tons of deadly fentanyl have been pouring over the border into the United States— and that Canada has ...