When the United States abandoned the North American Free Trade Agreement (NAFTA) to embrace the United States-Mexico-Canada Agreement (USMCA), it did so under the premise of crafting a better trade arrangement for itself. Established in 1994, NAFTA created a trilateral trade bloc that encouraged commerce between nations. But critics have accused it of encouraging the offshoring of U.S. jobs and dramatically suppressing wages — particularly within the automotive and manufacturing sectors.

Signed in 2018, and revised the following year, the USMCA was supposed to remedy those issues. But it’s been difficult to get all parties on board, especially when it comes to those persnickety rules of origin that stipulate how much of a vehicle’s hardware needs to be sourced from member nations.