So Long, Nafta; Hello, USMCA. What You Need to Know

As a candidate in 2016, President Donald Trump pledged to renegotiate the North American Free Trade Agreement and to terminate it “if we don’t get the deal we want.” After 13 months of diplomatic negotiations, plus further political wrangling within Washington, a replacement takes effect on Wednesday with modest changes in some areas, significant additions in others and a new name, the U.S.-Mexico-Canada Agreement.