US President Donald Trump pledged Sunday to begin renegotiating the North American Free Trade Agreement (NAFTA) in upcoming talks with the leaders of Mexico and Canada. NAFTA, which took effect in 1994, creates a trilateral trade bloc in North America. Trump will receive his Mexican counterpart Enrique Pena Nieto on January 31. No date has been given for a meeting with Canadian Prime Minister Justin Trudeau, but it is expected "soon," according to a readout from a call between the two leaders on Saturday.