WASHINGTON—The Trump administration aims to step up trade talks with other countries, using its new pact with Canada and Mexico as a template to redefine rules on everything from foreign exchange and labor markets to how U.S. partners do business with China.
U.S. Trade Representative Robert Lighthizer called the new North American trade deal a “paradigm-shifting model” of American policy that sends a tough message to the rest of the world. The U.S. will be less worried about running afoul of the World Trade Organization, a...