The administration is renewing efforts to end the war, pitching a revised ceasefire proposal and giving a top military official an unusual diplomatic assignment.

Mexican President Claudia Sheinbaum on Tuesday ruled out allowing U.S. strikes against cartels on Mexican soil, a day after President Trump said he was willing to do whatever it takes to stop drugs entering the U.S. Meanwhile, Mexican and American diplomats were trying to sort out what may have been an actual U.S. incursion.