President Donald Trump released two tariff letters on Saturday, imposing duties of 30% on products from Mexico and the European Union.

The EU will suspend retaliatory tariffs on U.S. goods scheduled to take effect Monday in hopes of reaching a trade deal with the Trump administration by the end of the month.

E.U. policymakers had gradually come around to the possibility that the bloc could face 10 percent across-the-board tariffs on all goods sent to the United States, and were hoping to negotiate except...

In his letter to Canada, Trump framed the tariffs as an effort to get the country to crack down on fentanyl smuggling, though there is relatively modest trafficking in the drug from that country.