In a 60-minute interview in September 2015, presidential candidate Donald Trump described NAFTA as “the worst trade deal ever approved in the United States” and said that if elected, “he would either renegotiate or we would break it.”   Juan Pablo Castaen [es], chairman of the trade group Consejo Coordinador Empresarial, expressed concern about the renegotiations and the desire to focus on the automotive industry.  A number of trade experts have stated that abandoning NAFTA would have a number of unintended consequences for the United States, including limited access to its key export markets, lower economic growth and higher prices for gasoline, cars, fruits and vegetables.  Members of the Mexican private initiative noted that many laws needed to be adapted by the U.S. Congress to eliminate NAFTA. Finally, this would give rise to complaints from the World Trade Organization.  The Washington Post found that a review of academic literature by the Congress Research Service concluded that “the overall net effect of NAFTA on the U.S. economy appears to be relatively modest, mainly because trade with Canada and Mexico accounts for a small percentage of U.S. GDP.”  In accordance with section 103 (b) (2) of the USMCA Act, the date of the interim provisions to be recommended will be at the latest after the USMCA comes into force and the implementation of the uniform rules of origin.  Uniform regulations at the USMCA help interpret the various chapters of the USMCA, first chapters 4-7. These rules were published one month before the trade agreement came into force and replaced NAFTA on July 1, 2020.  According to a 2012 study on tariff reductions on NAFTA, trade with the United States and Mexico increased by only 11% in Canada, compared to a 41% increase in the United States and 118% in Mexico. :3 In addition, the United States and Mexico benefited more from the rate reduction, with an increase in social benefits of 0.08% and 1.31%, with Canada recording a decrease of 0.06%. :4 The North American Free Trade Agreement (NAFTA) was implemented to promote trade between the United States, Canada and Mexico.