President Trump agreed to delay tariffs on Mexico and Canada for a month after both countries pledged to do more to block drugs and migrants.

China is subject to significant US tariffs already and has been since Trump's first term. But the blanket nature of today's new levies from the White House on every single goods import from China - from toys, to mobile phones, to clothes - is new and significant.

CBC News reports on the "full-scale trade war between Canada and the U.S." as Prime Minister Justin Trudeau announced Canada will launch retaliatory tariffs on $155 billion worth of American goods in the coming days.