Canada announces retaliatory tariffs on US goods as the trade war escalates, impacting industries from steel to dairy. Learn how this affects both nations.

Negotiations between the U.S. and Canada broke down late Friday and tariffs went into effect early Saturday morning.

Canadian Prime Minister Mark Carney vows to retaliate, says his country recognized that 'America has changed' and that the two countries would 'not return to our old relationship'

Canada would match US tariffs "dollar for dollar", says Prime Minister Mark Carney.