Mexican President Claudia Sheinbaum called for the country to keep “a cool head,” but a sense of exasperation swept over people involved in the U.S. negotiations.

BRIDGEWATER, New Jersey (AP) — President Donald Trump on Saturday announced he’s levying tariffs of 30% against the European Union and Mexico. Trump announced the tariffs on two of the United States’ biggest trade partners in letters posted to his social media account.