Republican presidential nominee Donald Trump has proposed renegotiating NAFTA and other existing trade deals. His motivation is based on a belief that a country is “losing” if imports outpace exports, which is a misunderstanding of trade.Republican presidential nominee Donald Trump has proposed renegotiating NAFTA and other existing trade deals. His motivation is based on a belief that a country is “losing” if imports outpace exports, which is a misunderstanding of trade. This is not necessarily the case, especially with agriculture. Instead of countries, for example, consider regions of the U.S. such as Silicon Valley and New York City, which “import” virtually all of their food. However, they pay for that food by exporting information tec...