The political leads for NAFTA will arrive in Washington, DC, this week for the close of the week-long fourth round of negotiations, while World Trade Organization Director General Roberto Azevêdo will also be in town for a meeting with U.S. Trade Representative Robert Lighthizer and other public engagements. Canadian Foreign Affairs Minister Chrystia Freeland, Mexican Economy Minister Ildefonso Guajardo and Lighthizer will meet for dinner on Monday night before delivering closing remarks on Tuesday, the last scheduled day of the...