Prime Minister Mark Carney said Thursday eliminating trade barriers within Canada would benefit Canadians far more than U.S. President Donald Trump can ever take away with his trade war as he made his case to retain power at the last debate ahead of the April 28 vote.

A snap election defined by economic anxiety and annexation threats is now a two-man race about who can stand up to the president.

These supply chain shifts away from the U.S. increase the pressure on Trump's strategy—to use tariffs to draw more investment in manufacturing and production into the U.S.—to pay off. Nvidia's $500-billion investment in the U.