On December 19, 2019, the U.S. House of Representatives passed the USMCA with multiparty support with 385 votes (Democracy 193, Republican 192) to 41 (Democracy 38, Republican 2, Independent 1).  On January 16, 2020, the U.S. Senate passed the trade agreement by 89 votes (Democrats 38, Republicans 51) to 10 (Democracy 8, Republican 1, Independent 1) and the bill was forwarded to the White House for the signature of Donald Trump.  On January 29, 2020, Trump signed the agreement (Public Law No: 116-113).  NAFTA has been formally amended, but not the 1989 Canada-U.S. Free Trade Agreement, which is only “suspended.”   In the Chapter “Health and Plant Health Measures” (SPS), the United States, Mexico and Canada agreed to strengthen disciplines for evidence-based SPS measures, while ensuring that the parties respect their sovereign right to the protection of life, animals, plants and health. The provisions provide for greater transparency in the development and implementation of SPS measures; Promoting scientific decision-making Improve certification, regionalization and equivalency processes Conducting system-based audits Improving the transparency of import controls; cooperation actions to improve the compatibility of the measures. The new agreement would establish a new mechanism for technical consultation between the parties to resolve the issues. On April 3, 2020, Canada informed the United States and Mexico that it had completed its national process of ratifying the agreement.
 On March 1, 2019, many organizations representing the agricultural sector in the United States announced their support for the USMCA and asked Congress to ratify the agreement. They also called on the Trump administration to continue to support NAFTA until the new trade agreement is ratified.  On March 4, House Ways and Means President Richard Neal predicted a “very hard” path through Congress for the agreement.  Starting March 7, senior White House officials met with members of the Ways and Means House of Representatives, as well as moderate cackles from both parties, such as the Solver Caucus, the Tuesday Group and the Blue Dog Coalition, to seek ratification support. The Trump administration also withdrew from the threat to withdraw from NAFTA as negotiations with Congress continued.  In addition to the provisions of the original NAFTA, the USMCA borrows significant credits under the Trans-Pacific Partnership (TPP) trade agreements and the Comprehensive and Progressive Agreement for the Trans-Pacific Partnership (CPTPP). On April 3, 2020, Mexico announced its willingness to implement the agreement and joined Canada.  The agreement came into force on July 1, 2020.     The agreement between the United States of America, the United States of Mexico and Canada is a free trade agreement between Canada, Mexico and the United States in lieu of the North American Free Trade Agreement (NAFTA).    The agreement has been referred to as NAFTA 2.0 or “New ALEFTA, since many nafta provisions have been introduced and its amendments have been found to be largely incremental.