In a major concession to Democrats, the Trump administration has agreed to support some protective measures for a class of drugs called advanced and very expensive drug biologists. The final agreement nullifies a provision that, for ten years, provided protection for drugs from cheaper alternatives in both Canada and Mexico. On May 11, 2018, House Of Representatives spokesman Paul Ryan set May 17 as the deadline for congressional action. This deadline was not met and the agreement with Mexico was not reached until August 27, 2018.  At that time, Canada had not approved the agreement. Mexico`s outgoing President Enrique Pea Nieto, having left office on 1 December 2018 and requiring 60 days as a review period, the deadline for making the agreed text available was set at the end of September 2018, 30 September 2018. Negotiators worked around the clock and reached an agreement less than an hour before midnight on a draft text. The next day, October 1, 2018, the USMCA text was published as an agreed document. The full text of the agreement between the United States, Mexico and Canada is available here. On May 30, U.S.
Trade Representative Robert E. Lighthizer presented Congress with a draft declaration on the administrative steps needed to implement the U.S.-Mexico Agreement (USMCA and the new NAFTA), in accordance with the 2015 Presidential Trade Promotion (TPA) Administrative Action Statement. The project will allow congress to be presented to Congress, after 30 days, on June 29, a law to implement the USMCA. In a letter  to Nancy Pelosi, House of Representatives spokeswoman Kevin McCarthy, the minority leader of the House of Representatives, the Republican, told Lighthizer that the USMCA was the gold standard in U.S. trade policy, modernizing the competitive trade in digital, intellectual property and services in the United States and creating a level playing field for U.S. businesses. , workers and farmers, an agreement that represents a fundamental shift in trade relations between Mexico and Mexico. The United States, Mexico and Canada have reached an agreement to modernize NAFTA, which is 25 years old, into a high-level agreement of the 21st century.
The new agreement between the United States and Mexico-Canada (USMCA) will support mutually beneficial trade, which will lead to freer markets, fairer trade and robust economic growth in North America. The renegotiated agreement contains a chapter on macroeconomic policies and exchange rate issues, with new political and transparent monetary commitments. The chapter will address unfair monetary practices by requiring high-level commitments to avoid any devaluation of competition and to target exchange rates, while significantly increasing transparency and providing accountability mechanisms. This approach is unprecedented in the framework of a trade agreement and will contribute to strengthening macroeconomic stability and exchange rates. On November 30, 2018, the USMCA was signed as planned by the three parties at the G20 summit in Buenos Aires.   Disputes over labour rights, steel and aluminum prevented ratification of this version of the agreement.   Canadian Deputy Prime Minister Chrystia Freeland, U.S. Trade Representative Robert Lightizer, and Mexican Under-Secretary of State for North America Jesus Seade officially signed a revised agreement on December 10, 2019, ratified by the three countries on March 13, 2020.
The North American Free Trade Agreement (NAFTA), signed by Prime Minister Brian Mulroney, Mexican President Carlos Salinas and the United States.