In May, United States Trade Representative (USTR) Robert Lighthizer began the formal process for renegotiating the North American Free Trade Agreement (NAFTA), which establishes the rules of trade among Canada, Mexico and the United States. The retail sector has urged USTR to preserve NAFTA’s basic structure, while advocating changes that could help retailers begin sourcing more items from NAFTA countries rather than Asia. As explained in the article, the outcome of NAFTA renegotiation also will signal the future direction of U.S. trade law and policy.