The United States and its biggest trading partners were hurtling Sunday into a new era of protectionism as Canada, Mexico and China said they would adopt countermeasures against new tariffs levied by President Donald Trump.

Two weeks into his second term, President Donald Trump has launched the United States into a new trade war. He announced steep new tariffs on imports from Canada, Mexico and China — the three largest U.

President Donald Trump's steep tariffs on Canada, Mexico and China could worsen ex­ist­ing drug short­ages in the U.S. and raise healthcare costs for patients, some drug trade groups warn. They also said the import taxes could strain cash-strapped generic drugmakers and distributors.