When NAFTA took effect in 1993 the U.S. had a trade surplus with Mexico of $1.7 billion.
The Trump uproar now is about the current $61 billion deficit. However, trade benefits for the U.S. have also exploded to the upside.
U.S. exports to Mexico soared from $41 billion in 1993 to $240 billion in 2014.
Imports from Mexico, however, grew even faster from $40 billion to $294 billion.
The issue for the U.S. is the effect the agreement has had on U.S. jobs going south, estimated at 100,000 or even much more.
But, how many are just manufacturing jobs that were lost because of other trade deals, notably China and of course what could be the biggest shift, automation?
There will be a huge push back if a border tax affects the cost of living of Americans who buy anything from fruit and vegetables to automobiles manufactured in Mexico and then shipped north.