US-Canada trade war deepens as Trump threatens additional tariffs

The US-Canada trade war shows no signs of easing. Canadian negotiators walked away from talks in Washington as Prime Minister Mark Carney accused the Trump administration of making disproportionate demands at the last minute. The US now is levying 50% tariffs on 20 billion dollars of Canadian goods, with Canada's retaliatory tariffs on US goods set to take effect in early September. The fight could have serious consequences for both countries' economies.