The agreement is designated differently by each signatory – in the United States, it is called the U.S.-Mexico-Canada Agreement (USMCA);   in Canada, it is officially known as the Canada-U.S.-Mexico Agreement (CUSMA) in English and the Canada-U.S.-Mexico Agreement (ACEUM) in French;  and in Mexico, tratado is called tratado between México, Estados Unidos y Canadé (T-MEC).   The agreement is sometimes referred to as “New NAFTA” with respect to the previous trilateral agreement for the successor, the North American Free Trade Agreement (NAFTA). Senate Republicans had little influence on the process, with spokeswoman Nancy Pelosi (D-Calif.) playing a role in making or breaking up the decision to bring the agreement to the ground of the House of Representatives, which was initially expected to respond by law to the agreement. The role of Democrats in the House of Representatives and their allies in labor angered some Republicans, including Senator Patrick J. Toomey (R-Pa.), the fiercest opponent of the agreement, who complained that the Senate had been “rolled.” The Senate on Thursday approved a broad U.S. economic pact with Canada and Mexico, fulfilling President Trump`s promise of a new North American trade deal just before his impeachment proceedings. On December 12, 2019, the Mexican Senate adopted the revised treaty by 107 votes to 1.  On April 3, 2020, Mexico announced its readiness to implement the agreement and joined Canada, although it requested that its auto industry have additional time to comply with the agreement.  On April 24, 2020, U.S. Trade Representative Robert Lighthizer formally informed Congress that the new trade agreement is expected to enter into force on July 1, 2020, and informed Canada and Mexico.
  The agreement led to divisions in the pre-election field of the Democrats. During a debate Tuesday night, Sen. Bernie Sanders (I-Vt.) predicted that the agreement would lead to continued outsourcing of American jobs. “We could do much better than a Trump-led trade deal,” he said. But other front-runners, including former Vice President Joe Biden and Sen. Elizabeth Warren (D-Mass.), support the agreement. Warren called it a “modest improvement” that will relieve farmers and workers affected by Trump`s trade policy. On December 9, 2019, Fox News reported that negotiators from the three countries reached an agreement on implementation, paving the way for a final agreement within 24 hours and ratification by all three parties before the end of the year. Mexico has agreed to impose a minimum wage of $16 per hour for Mexican auto workers by a “neutral” third party. Mexico, which imports all of its aluminum, also objected to the provisions relating to the U.S.
steel and aluminum content of automotive components.  The other major obstacle to ratification was Trump`s trade war, particularly the steel and aluminum tariffs imposed on Mexico and Canada. (In addition, these countries have imposed retaliatory duties.) Thursday`s vote came a day after Mr. Trump signed a partial deal with China, which has been going on for nearly two years in a long trade war with Beijing. As part of the agreement, China pledged to buy an additional $200 billion in U.S. exports above previous levels. With the USMCA vote, Trump won a trade victory that could calm things down after the president exacerbated trade tensions around the world and aligned tariffs with friends and foes.