Canada's retaliatory tariffs of up to 50 percent on approximately $19.8 billion worth of US goods came into effect this Tuesday, further escalating the trade war between the two neighbours. At the same…

Ottawa targets US$20 billion in US goods after trade talks collapsed, with both sides digging in and analysts warning of further escalation.

'No more selling Bombardier in the United States!' The president posted in a string of more than 60 posts.