Trump threatens more tariffs over Canadian wildfire smoke

President Trump is threatening to raise tariffs on Canada over wildfire smoke that drifted from the country into the U.S., triggering health warnings and disrupting outdoor activities. Why it matters: Dealing with Canadian wildfire smoke is becoming a semi-regular occurrence in the Midwest and Northeast. It degrades air quality, exposing millions to short- and long-term health risks, Axios' Herb Scribner reports. Driving the news: Trump said Friday on Truth Social that the "cost of this…