The Trump administration's aggressive tariff policies have sparked varied reactions from key trade partners like Mexico and Canada. Despite tensions, the USMCA remains a crucial element shielding most trade exchanges from punitive measures.

President Donald Trump on Thursday imposed once unthinkably high U.S. taxes on imports from dozens of countries, part of his campaign to turn one of the world’s most open economies into a fortress bristling with barriers to trade.

The imbalance in President Trump’s treatment of America’s closest trading partners may come from his desire to make Canada the 51st state, some Canadians believe.