Automakers and parts suppliers would struggle if President-elect Donald J. Trump followed through on his threat to impose 25 percent tariffs on imports from Canada and Mexico. Protectionism (Trade), International Trade and World Market, Presidential Election of 2024, Automobiles, Customs (Tariff), Factories and Manufacturing, United States International Relations, Trump, Donald J, Canada, Mexico Automakers and parts suppliers would struggle if President-elect Donald J. Trump followed through on his threat to impose 25 percent tariffs on imports from Canada and Mexico. NYT > Business