Canada faces steep 35% tariffs on almost 60% of its U.S. imports — if President Trump follows through tomorrow on his Aug. 1 deadline for imposing the extraordinary duty.

President Donald Trump said the US will put a 35% tariff on some imports from Canada, escalating the tensions between two countries that have impaired one of the world’s largest trading relationships.

The trade war between the US and Canada has escalated sharply with President Donald Trump increasing the tariff rate on Canadian imports from 25% to 35%. Most goods will avoid the increased costs entering the US market because they are protected by a trade treaty.