Trump cannot impose  a tariff under NAFTA so he would have to give notice to cancel NAFTA. What happens then to all the vehicles produced in Canada? Do we get a tariff imposed as well or does he want all the car plants from Canada and Mexico to relocate to the U.S.A."? Mexico may be his current target but we are probably going to be treated the same way. I assume the US exports vehicles as well so does that mean a trade war with other countries imposing tariffs on USA produced vehicles? What a mess he is creating!