With the Dow Jones Industrial Average Index finally breaking through the 20,000 barrier last week to a record high, the state of US-Mexico relations sank to the lowest level in living memory, some say since the Mexican-American War of 1846-48 that followed the US annexation of Texas. US-Mexico relations boiled over late last week, pushing the countries closer to a trade war that threatens to spoil decades of friendship and economic cooperation. The feud grew increasingly hostile as Mexican President Enrique Pena Nieto scrapped his trip to Washington after President Trump followed through on campaign pledges to renegotiate the North American Free Trade Agreement (NAFTA) and send Mexico the bill for the cost of building a border wall. The Trump Administration retaliated against President Pena Nieto’s cancellation by floating the idea of imposing a 20% tax on all Mexican imports.