Washington announced sweeping import bans on Canadian alcohol, motorcycles and dairy after Ottawa's retaliatory tariffs took effect. The move deepens a widening trade rupture even as officials keep talking.

US President Donald Trump has escalated his rhetoric against Canada, saying it is “time to teach Canada you can’t do this anymore” after trade negotiations between the neighbouring...

Canada struck back at the United States on Tuesday with retaliatory tariffs on about $20 billion worth of American goods, including steel, dairy products, appliances and farm equipment, as the trade…