Few countries have bet as heavily on free trade as Mexico and Canada. Now that President Trump’s 25% tariffs have hit both countries, their economies are facing a stress test that rivals the global financial crisis and the pandemic.

President Trump's sweeping tariffs threatened to upend free trade in North America and sent shock waves through the global supply chain.

The nation’s top three trading partners are rolling out levies on a wide range of products, including soybeans, meat and grains, in the escalating trade war.