Canada’s wildfires raise temperature on Trump-Carney relationship

President Trump has put Canadian Prime Minister Mark Carney on notice over the wildfire smoke that has shrouded over a dozen states, threatening tariffs and adding more strain to already fraught U.S.-Canada relations. Trump has said the smoke from Canada’s wildfires has been “poisoning” the air in the U.S. and suggested that America’s northern neighbor...

President Trump has put Canadian Prime Minister Mark Carney on notice over the wildfire smoke that has shrouded over a dozen states, threatening tariffs and adding more strain to already fraught U.S.-Canada relations. Trump has said the smoke from Canada’s wildfires has been “poisoning” the air in the U.S. and suggested that America’s northern neighbor...