President-elect Trump is putting America’s neighbors on notice for potential tariffs. China is not the only target for Donald Trump’s promised tariffs. He said he would sign an executive order imposing a 25 percent tariff on all products coming into the United States from Canada and Mexico. Writing on social media, he complained about “ridiculous open borders” and said, on January 20th, he will sign an executive order slapping a 25 percent tariff on Mexican and Canadian imports.