President Donald Trump promised during the election campaign to repeal NAFTA and other trade agreements that he considered unfair to the United States. On August 27, 2018, he announced a new trade agreement with Mexico to replace him. The U.S.-Mexico trade agreement, as it was called, would maintain duty-free access for agricultural products on both sides of the border and remove non-tariff barriers to trade, while further promoting agricultural trade between Mexico and the United States and effectively replacing NAFTA. After diplomatic negotiations in 1990, the leaders of the three nations signed the agreement on December 17, 1992 in their respective capitals.  The signed agreement then had to be ratified by the legislature or parliament of each country. The momentum for a North American free trade area began with the United States. President Ronald Reagan, who made this idea part of his campaign when he announced his candidacy for president in November 1979.  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 turn to U.S. President George H. W. Bush to propose a similar agreement to make foreign investments after the Latin American debt crisis. When the two leaders began negotiations, the Canadian government of Prime Minister Brian Mulroney was concerned that the benefits That Canada had derived from the Canada-U.S. Free Trade Agreement would be undermined by a bilateral agreement between the United States and Mexico, and asked to become a party to the U.S.-Mexico talks.  September 30, 2018, the day of the deadline for Canada-United States. The negotiations resulted in a provisional agreement between the two countries, preserving the trilateral pact when the Trump administration submits the deal to Congress.  The new name of the agreement was “United States-Mexico-Canada Agreement” (USMCA) and entered into force on July 1, 2020.   Under NAFTA, the three signatories agreed to remove barriers to trade between them. By eliminating tariffs, NAFTA has increased investment opportunities. NAFTA has boosted Mexican agricultural exports to the United States, which have tripled since the pact`s implementation. Hundreds of thousands of jobs in the auto industry have also been created in the country, and most studies have found [PDF] that the agreement has boosted productivity and lowered consumer prices in Mexico.
After the election of President Trump in 2016, support for NAFTA became highly polarized between Republicans and Democrats. Donald Trump has made negative comments about NAFTA, calling it “the worst trade deal ever approved in this country.”  Republican support for NAFTA increased from 43% in 2008 to 34% in 2017. Meanwhile, Democratic support for NAFTA rose from 41 percent in 2008 to 71 percent in 2017.  The Strategic Partnerships Agreement, the Security Treaty that accompanies CETA and establishes common values for the parties to defend, has proven to be the most successful for Canada, as it has provided a forum for closer cooperation and consultation, and a similar treaty should be of equal value to all parties in North America and Europe[…].