Canada imposed retaliatory tariffs against the United States as the two neighbors slide toward an all-out trade war. The tariffs will hit a range of U.S. products, from industrial goods to everyday items. At the same time, President Trump is threatening Canada with even steeper tariffs. William Brangham reports.

Canada will impose tariffs on some US goods in retaliation for 50 percent levies ordered by President Donald Trump on Canadian products, Prime Minister Mark Carney says, after…

Canadian Prime Minister Mark Carney has announced retaliatory tariffs on the United States, after walking away from a "bad deal" on trade in a deepening rift between the longtime…

Canada is preparing retaliatory tariffs against the US as Mark Carney rejects Trump’s trade demands and Washington threatens 50% tariffs on Canadian industries.