Mexican President Claudia Sheinbaum says that the incoming U.S. president’s plan to institute massive tariffs on Mexican imports would bring about mutually assured economic destruction.

President-elect Trump says he will add a 25 percent tax on goods from Canada and Mexico on his first day in office.

President Claudia Sheinbaum responded to President-elect Trump’s threat to impose high tariffs, saying such a move would inflict damage on both countries.