A quicky: From Mexico Trucker Online a list of the costs to the US of canceling the cross-border trucking agreement with Mexico which violates NAFTA.
An almost irrelevant aside. The Teamsters Union had a fair bit to do with this violation of NAFTA. In the 1990s I worked at a state hospital in Illinois. I have no idea why the Teamsters was the union of record for a lot of the employees. I do know that Union drivers earned more than practically anybody else on staff who wasn't a member of the Teamsters and spent many days just hanging out on the grounds. I know that Teamsters were responsible for various chores and that the rest of us were forbidden, for instance, to change our own light bulbs. And when lightbulbs needed to be changed, two Teamsters came which lead, of course, to the well-worn joke about how many Teamsters it took to change a light bulb.