The White House announced on July 20 that it will impose 50% tariffs on close to $20 billion worth of Canadian imports, covering everything from cement and clothing to hockey sticks and swimming pools.

Canada's relationship with the U.S. has frayed amid Trump's tariff-heavy agenda and vocal displeasure with the nations' trilateral trade pact with Mexico.

The duties take effect within 30 days and mark a major escalation in trade tensions between the North American neighbours.

As Prime Minister Mark Carney warns of rising consumer costs on both sides of the border, Canadian leaders signal an aggressive standoff over Section 338 import taxes.

Sen. Susan Collins (R-Maine) and GOP governor nominee Bobby Charles were quick to buck President Donald Trump’s latest tariff policy.

President Trump is preparing new levies to replace the ones he put in place after the Supreme Court gutted his trade agenda.

Ontario Premier Doug Ford called for Canada to fight back on tariffs "dollar for dollar."

President Trump announced a 10% "global tariff" just hours after the Supreme Court struck down his blanket tariffs in February. But that stopgap maneuver under Section 122 of the Trade Act of 1974 came with the authority to levy duties for 150 days.