The U.S. just hit Canada with another tariff gut punch, and Canada's largest private sector union says it's time to hit back with the same force.

Canada's labour union Unifor called for retaliatory tariffs on U.S. steel and aluminium on Wednesday as the U.S. government doubled the levies to 50%. "Unifor is urging the federal government to act without delay to defend Canada's manufacturing sector and counter the escalating trade assault,

Canada is preparing retaliatory measures as U.S. President Donald Trumps decision to double steel and aluminum tariffs to 50% took effect, impacting key trading partners like Canada and Mexico. Prime Minister Mark