Analysis: Separate US trade talks test North America's pact

A trilateral free trade zone has defined the North American economy for 32 years. Currently, separate trade talks conducted by the U.S. are testing this pact. Because negotiations with Mexico are more advanced, the U.S. could potentially force Canada to make concessions that Mexico has already agreed to. This shift in diplomatic strategy highlights a potential imbalance in how the U.S. manages its trade relationships within the established North American economic framework and regional agreements.