MEXICO CITY — The lengthy and tumultuous prelude to talks between the United States, Mexico and Canada over the North American Free Trade Agreement has in many ways epitomized the chaos and contradictions of Donald Trump’s presidency. Trump has demonized the 23-year-old pact as the “worst trade deal, maybe ever,” but officials from his administration have hailed its potential to create a “regional powerhouse” through further economic integration. The confusion notwithstanding, Trump has forced policymakers to reflect on an agreement that is vital to the interests of all three NAFTA members. But he has also forced them to consider the […]