Trump's tariffs on Canada raise legal questions

President Donald Trump invoked Section 338 of the Tariff Act of 1930 to impose a 50% tax on $20 billion worth of Canadian imports, sparking retaliation and straining relations between the two nations. This obscure statute, little known even to many trade lawyers, has never been tested in court, leaving its constitutionality in doubt. Critics argue that the Depression-era law may have been superseded by more recent trade laws, while supporters contend it should be upheld as a tool to combat trade discrimination.