Trucks cross into the United States from Canada on the Gordie Howe International Bridge on September 6, 2026. | Jeff Kowalsky/AFP via Getty Images This story appeared in Today, Explained, a daily newsletter that helps you understand the most compelling news and stories of the day. Subscribe here. I spent Labor Day weekend in Montreal, and signs of the trade war were everywhere.  On Google Maps, which — at least until we crossed over the border — jarringly displayed the label “Lake America” where “Lake Ontario” used to be. Along Highway 2, which runs beside the St. Lawrence River, and...