Overview
- Negotiations broke down late Friday and the U.S. 50 percent duties on roughly $20–$28 billion of Canadian imports took effect at 12:01 a.m. on Saturday, after Canada withdrew from the table and ordered negotiators back to Ottawa.
- The White House invoked Section 338 of the Tariff Act of 1930 to justify the levies, a rarely used authority that legal experts say is likely to prompt court challenges over the administration’s basis for the measure.
- Canada announced immediate dollar‑for‑dollar retaliatory tariffs and has promised support for affected workers and businesses while officials assess the hit to sectors including autos, steel, aluminum, lumber, dairy and consumer goods.
- A key sticking point was provincial bans on U.S. alcohol; Prime Minister Mark Carney had asked premiers to restore U.S. liquor as part of a deal and resistance from some provinces helped limit Ottawa’s room to compromise.
- Beyond the immediate tariff effects, analysts warn the dispute could disrupt integrated North American supply chains, raise costs for manufacturers and consumers, and spur a protracted legal and political standoff that reshapes Canada’s trade dependence on the U.S.