On the campaign trail, Donald Trump and Kamala Harris are constantly talking about trade, tariffs and domestic manufacturing.

In many ways, these talking points stem from a single trade deal that transformed the U.S. economy and remade both parties’ relationship with the working class.

Dan Kaufman, a contributing writer for The New York Times Magazine, explains how the North American Free Trade Agreement broke American politics.

Guest: Dan Kaufman, the author of “The Fall of Wisconsin,” and a contributing writer for The New York Times Magazine.

Background reading:

How NAFTA broke American politics.
Both Democrats and Republicans are expressing support for tariffs to protect American industry, reversing decades of trade thinking in Washington.

For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.

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