Trump is discussing additional trade penalties against Canada after Prime Minister Mark Carney unveiled tariff retaliation. Read more.

U.S. lawmakers, governors and business leaders warned that new tariffs on Canadian goods would increase costs for Americans. Read more

Trump's fresh wave of tariffs that took effect this weekend could cost tens of thousands of jobs across Canada, warns economist. Read on

Carney promised retaliation against the United States, announcing “dollar-for-dollar” tariffs, which are set to begin Sept. 8.