Congressional Democrats have suggested they could vote for the North American pact if protections for Mexican workers are sufficiently implemented.
Present societies can learn from Teotihuacán's narrow wealth gap, says one archaeologist.
Mexico pledged to disrupt human smuggling networks and patrol its own borders more closely.
Deal ends threat of U.S. tariffs against Mexico.
The prospect of pop-up tariffs hitting everything coming across the border has the people who work in the export-import trade worried.
The Trump administration has threatened to levy a 5% tax on Mexican imports next month, which could go as high as 25%.
Donald Trump says he is placing a 5% tariff on Mexican imports, effective June 10, to pressure the country to curb immigration into the U.S. by undocumented migrants.
Lines of vehicles and waiting times have been growing at border crossings in El Paso, San Diego, and elsewhere.
Business on the Texas-Mexico border
Lots of Texans drive to Mexico for vacation. Many go for a very different reason: dental work.
Even though they have the right to return to the U.S., they may not know it, a California Sunday reporter says.