- Parag Khanna: A businessman should at the very least understand the most basic law of economics
- Maybe Donald Trump should go and see the reality on the ground around where he would erect his wall, he says
Parag Khanna is a CNN Global Contributor. This article and map are adapted from his forthcoming book "Connectography: Mapping the Future of Global Civilization." You can follow him on Twitter @paragkhanna. The opinions expressed in this commentary are solely his.
(CNN)American voters are getting wise to Donald Trump's radical protectionist fantasies. As the primaries swing toward the Northeast, a region even more dependent on trade than Wisconsin, serious economic and foreign policy issues will continue to plague the Republican front-runner.