The United States, Canada, and Mexico begin a new chapter by replacing the 24-year-old North American Free Trade Agreement (NAFTA).
Mexico's President Enrique Pena Nieto (L), US President Donald Trump (C) and Canadian Prime Minister Justin Trudeau, sign a new free trade agreement in Buenos Aires, on the sidelines of the G20 Leaders' Summit on Nov. 30, 2018. Saul Loeb/AFP/Getty Images
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