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. The kick-off of a North American free trade area began with U.S. President Ronald Reagan, who made the idea part of his campaign by announcing his candidacy for president in November 1979. [15] Canada and the United States signed the Canada-U.S. Free Trade Agreement in 1988, and shortly thereafter, Mexican President Carlos Salinas de Gortari decided to address U.S. President George H.W. Bush to propose a similar agreement to make foreign investment after the Latin American debt crisis. [15] When the two leaders began negotiations, the Canadian government of Prime Minister Brian Mulroney feared that the benefits that Canada had gained through the Canada-U.S.

free trade agreement would be undermined by a bilateral agreement between the United States and Mexico, and asked to be associated with the U.S.-Mexico talks. [16] Analysts agree that NAFTA has opened up new opportunities for small and medium-sized enterprises. Each year, Mexican consumers spend more on U.S. products than their counterparts in Japan and Europe, which means the stakes are high for entrepreneurs. (Most NAFTA studies focus on the impact of U.S. affairs with Mexico. Trade with Canada has also been improved, but the passage of the trade agreement has not had such a significant impact on the already liberal trade practices that America and its northern neighbour have complied with.) Methanex Corporation, a Canadian group, has filed a $970 million complaint against the United States. Methanex said a California ban on methyltert-butyl ether (MTBE), a substance that had found its way into many wells in the state, was hurting the company`s sale of methanol.

The complaint was dismissed, and the company was ordered to pay $3 million in fees to the U.S. government, based on the following argument: «But as a matter of general international law, a non-discriminatory regulation for a public purpose that is adopted in accordance with due process and, with respect to inter alios, a foreign investor or investments are not considered dispossessed and compensable unless specific commitments have been made taken by the foreign government of the day to consider investments that the government would refrain from regulating. [51] Although President Donald Trump warned Canada on September 1 that he would exclude them from a new trade agreement if Canada did not comply with its demands, it is not clear that the Trump administration has the power to do so without congressional approval. [145]:34-6[146][148][148] According to reports by the Congressional Research Service (CRS), one was published in 2017 and another on July 26, 2018, it is likely that President Trump would need congressional approval for fundamental changes to NAFTA before the changes are implemented. [145]:34-6[149] Democratic candidate Bernie Sanders, who opposed the Trans-Pacific Partnership trade agreement, called it «the continuation of other disastrous trade agreements such as NAFTA, CAFTA and normal, sustainable trade relations with China.»