Trump’s theory of global power faces a reckoning in Iran and Canada

Trump doubles Canadian car tariffs after talks collapse

The 50 percent levies — which apply to about $20 billion worth of Canadian goods — took effect Saturday after last-minute negotiations between Washington and Ottawa fell apart.

Trump’s comments came after trade talks between the two countries broke down, with each side accusing the other of making eleventh-hour demands that derailed negotiations.

US President Donald Trump has threatened to raise tariffs on Canadian cars, automotive parts and steel to 50 percent from January 1, escalating the Canada-US trade war.