President Donald Trump raised tariffs on Canadian steel and aluminum to 50%, escalating trade tensions.

Can Europe guarantee its own security? Balkan Devlen and Peter Hefele
Tariffs are compromising Trump’s economic agenda: Philip Cross in The Daily Economy
Trump doubles planned Canada tariffs to 50% [Video]
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How provincial trade barriers rip off Canadians: Peter Copeland & Ryan Manucha
Canadians want to be able to defend Canada. Our government should provide a way: Alex Wilner in the Globe and Mail