According to Chad P. Bown (Senior Fellow at the Peterson Institute for International Economics), it is unlikely that a renegotiated NAFTA, which would restore barriers to trade, will help workers who have lost their jobs, regardless of their cause, to use new employment opportunities.”  In 1994, with the North American Free Trade Agreement (NAFTA), the United States, Mexico and Canada created the world`s largest free trade region that generated economic growth and helped improve the standard of living of people in the three member countries. By strengthening trade and investment rules, this agreement has proven to be a solid foundation for building Canada`s prosperity and has provided a valuable example of the benefits of trade liberalization for the rest of the world. The new Canada-U.S.-Mexico agreement will strengthen Canada`s strong economic ties with the United States and Mexico. NAFTA represents the North American Free Trade Agreement, negotiated by former U.S. President George H.W. Bush, which came into force in 1994 under President Clinton. The agreement exists between the United States, Canada and Mexico and was originally created to reduce trade costs and strengthen North American trade. The agreement eliminated almost all tariffs and taxes on imports and exports. The agreement also frees the three countries from trade barriers.
In October 2017, in The Globe and Mail in Toronto, an op-ed questioned the U.S. willingness to renegotiate the agreement or whether it planned to do so, no matter what, and noted that the newly appointed U.S. Ambassador, Kelly Knight Craft, is married to the owner of Alliance Resource Partners, a major U.S. coal company. Canada is implementing a carbon plan, and it is also about selling bomber jets. “Americans used so many poison pills in last week`s conversations in Washington that they should have been charged with murder,” columnist John Ibbitson wrote.  In addition, there is a provision that the agreement itself must be reviewed every six years by the three nations, with a 16-year forfeiture clause. The contract may be renewed for a period of 16 years during the six-year review period.
 The introduction of the Sunset clause gives more control in the organization of the future of the USMCA in the hands of national governments. However, there is concern that this could lead to greater uncertainty. Sectors such as automotive require significant investment in cross-border supply chains.  Given the dominant position of the U.S. consumer market, it is likely that this will put pressure on companies to establish more production in the United States, with a higher probability of higher production costs for these vehicles.  The adoption of NAFTA has resulted in the removal or removal of barriers to trade and investment between the United States, Canada and Mexico.