Here’s how the supply chain for car-making got global

President Donald Trump has ordered the Commerce Department to look into whether higher tariffs are needed on imports of cars, trucks and automotive parts, in the interest of national security. But how do you decide if a vehicle is imported? These days, some American brands are made overseas. Foreign carmakers have factories in the U.S. And cars are assembled from parts made across the globe. How did we get to this place?

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