Although NAFTA has not kept all its promises, it has remained in place. Indeed, in 2004, the Central American Free Trade Agreement (CAFTA) extended NAFTA to five Central American countries (El Salvador, Guatemala, Honduras, Costa Rica and Nicaragua). In the same year, the Dominican Republic joined the group in signing a free trade agreement with the United States, followed by Colombia in 2006, Peru in 2007 and Panama in 2011. The Trans-Pacific Partnership (TPP), signed on October 5, 2015, represented an extension of NAFTA to a much larger extent. In 1990, Carlos Salinas, then Mexican president, began talks with the United States to join the North American Free Trade Area. That is why Reagan`s successor, President George Bush, began negotiations in 1991 for a North American trade agreement that would bring together the United States, Mexico and Canada. The political gap was particularly large in terms of views on free trade with Mexico. Contrary to a positive view of free trade with Canada, which 79% of Americans called fair trade partners, only 47% of Americans thought that Mexico practiced fair trade. The gap between Democrats and Republicans has widened: 60% of Democrats thought Mexico was fair trade, while only 28% of Republicans did. That was the highest number of Democrats and the lowest figure ever recorded by Republicans in the Chicago Council survey. Republicans had more negative views on Canada than fair trade partners and Democrats.
 Mr. Trudeau and Canadian Foreign Minister Chrystia Freeland announced that they would join the agreement if it was in Canada`s interest.  Freeland returned prematurely from his diplomatic trip to Europe and cancelled a planned visit to Ukraine to participate in the NAFTA negotiations in Washington at the end of August, D.C.  According to an August 31 Canadian press, published in the Ottawa Citizen, key supply management topics, Chapter 19, drugs, cultural exemption, sunset clause and de minimis thresholds.  Before sending it to the U.S. Senate, Clinton added two subsidiary agreements, the North American Agreement on Labor Cooperation (NAALC) and the North American Agreement on Environmental Cooperation (NAAEC) to protect workers and the environment, as well as to allay the concerns of many members of the House of Representatives.