Two days after President-elect Donald Trump threatened to impose sweeping new tariffs on Canada and Mexico as part of his effort to crack down on illegal immigration and drugs, he said he spoke with the Mexican president and she “agreed to stop Migration through Mexico.

Mexican President Claudia Sheinbaum threatened to retaliate with her own tariffs against the United States, after President-elect Trump suggested he would impose a 25 percent tax on imported goods from Mexico if her country did not stop the flow of drugs across the border. In remarks on Tuesday, Sheinbaum said that drugs were a U.S.…