In 1965, the Canada–United States Automotive Products Agreement was enacted, a precursor to NAFTA that removed tariffs between the two countries. This led to increased auto manufacturing in Canada and more jobs. The agreement was abolished in 2001, but by then NAFTA had more or less superseded it.

President Trump paused tariffs on Canada and Mexico on Monday, and China retaliated immediately Tuesday as a 10 percent U.S. tariff on all Chinese goods went into effect, announcing a series of measures including its own levies of 10 percent to 15 percent on some U.