U.S. vehicle manufacturers and many of their suppliers have based billions of dollars of investment on relatively open trade with Mexico, China and other countries.
A U.S.-China trade war would have ripple effects that would also depress demand for Latin America's raw materials, but for now China sees nothing but potential.
Trump claimed Thursday that he convinced Ford Motor Co. not to move a plant from Kentucky to Mexico, but Ford never intended to move the plant.
The U.S. chamber of Commerce has estimated some 6 million jobs in the United States depend on trade with Mexico.
Mexico's Economy Minister believes Trump will not back out of NAFTA, and has said Mexico could add new chapters to the deal to update it.
Since NAFTA took effect in 1994, Mexican exports to the United States have jumped six-fold, transforming a once-closed economy into a hub for investment.
Guanajuato governor expects the state to become #1 car manufacturer in the country by 2020.
Mexican government officials and members of the private sector said they're ready to transform new challenges into opportunities.
A full commercial openness could be near, according to EPN.
Obama, Trudeau and Peña Nieto pushed back Wednesday on calls for walling off their nations from free trade, arguing that more commerce with the outside world is inevitable and will deliver measurable benefits for their citizens.