“Trump slaps 50% tariffs on Canada and Carney vows to ‘intensify’ trade talks”

What actually happened

Trump signed three proclamations under Section 338 of the Tariff Act of 1930 imposing 50% tariffs on Canadian autos, alcohol and dairy-linked goods, citing discriminatory treatment of US exports. The White House confirmed the duties apply regardless of USMCA status and take effect in 30 days, while energy, potash, fish and critical minerals are exempted.

Key facts

• The tariff rate is 50%, described by a senior administration official as "the highest rate the president can impose under Section 338."
• The White House fact sheet confirms "These Section 338 tariffs will not apply to energy, potash, products subject to tariffs under Section 232, and certain other goods, such as fish or critical minerals."
• Section 338 is a rarely used statute; law firm analysts noted it had "gone unused for decades" with no public record since 1949.
• Canada is one of only two economies to retaliate against Trump's tariffs, per the fact sheet, which states "only two countries have chosen to retaliate against President Trump's tariffs rather than negotiate a deal with the United States: the People's Republic of China and Canada."
• Canadian Chamber of Commerce head Candace Laing responded not with defiance but by urging a deal, saying "While this is a regrettable escalation by the U.S. Administration, we now have 30 days. Both sides need to use this window to make meaningful progress in advancing formal talks."

What to watch for

Section 338 is legally untested in modern courts and, unlike the IEEPA tariffs already struck down by the Supreme Court, could face its own challenge within the 30-day window. Watch whether Canada's alcohol boycott and steel/aluminium counter-tariffs escalate further, or whether the 30-day runway produces the "meaningful progress" industry groups are demanding.