The president-elect’s pledge to use tariffs to stem the flow of opioids from China could backfire if Beijing responds by ending counternarcotics cooperation.

China's state media shrugged off U.S. President-elect Donald Trump's pledge to slap additional tariffs on Chinese goods in editorials late on Tuesday, accusing the former president of blaming China for the country's failure to address the fentanyl crisis.

Mexico and Canada are the United States’ top two trading partners, accounting for nearly 30% of trade volumes.

Justin Trudeau, Canada's prime minister, told reporters on Tuesday that he had a "good" conversation with Trump following the president-elect's post.

President-elect Donald Trump has identified what he sees as an all-purpose fix for what ails America: Slap huge new tariffs on foreign goods entering the United States