China and Canada strike back as Trump’s trade tariffs take effect; Trump doubles metal tariffs on Canada and calls for it to become part of the U.S.

 China and Canada strike back as Trump’s trade tariffs take effect : NPR (Thanks to Joe for this one)

Trump Live Updates: Stock Market News, Canada Tariffs and More - The New York Times

Trump doubles metal tariffs on Canada and presses anew for it to join the U.S.

Ontario slaps 25% tax increase on electricity exports to US in response to Trump's trade war | AP News (Thanks to Graydon for this one)