The Republican president posted on social media that the tariffs were necessary “to protect Americans," pressing the three nations to do more to curb the manufacture and export of illicit fentanyl and for Canada and Mexico to reduce illegal immigration into the U.S.
The tariffs, if sustained, could cause inflation to significantly worsen, threatening the trust that many voters placed in Trump to lower the prices of groceries, gasoline, housing, autos and other goods as he promised. They also risked throwing the global economy and Trump’s political mandate into turmoil just two weeks into his second term.