President Donald Trump unveiled 50% tariffs on a wide range of imports from Canada on Monday in response to what the U.S. administration called its discriminatory treatment of American-made cars, alcohol and dairy goods, threatening a new front in a global trade war.
In slapping import taxes on goods ranging from wine to cement and ice hockey gear, Trump invoked Section 338 of the Tariff Act of 1930, which permits a president to impose punitive tariffs of up to 50% against trading partners deemed to have discriminated against U.S. goods. That marked the law's first known usage in nearly a century of existence.
