- Canada issues air quality warnings over US wildfire smoke after Trump tariff threat The Guardian
- Trump to Impose 50% Tariff on Many Canadian Goods The New York Times
- Opinion: New U.S. tariffs hit a Canada tied in knots with contradictory trade policies The Globe and Mail
- Trump says Canada ‘poisoned’ US air with wildfires, floats new tariffs The Hill
- Michigan Republicans: Canada’s Apologies Won’t Clear Michigan’s Skies U.S. Representative Jack Bergman (.gov)
