Once the world's largest corporation, the now-struggling US Steel wants to sell itself to Japan's Nippon Steel. The United Steelworkers oppose the deal, and President Biden is backing the union. The Washington Post's David Lynch explains how the steel giant's future became an election-year issue.

This episode was produced by Peter Balonon-Rosen, edited by Matt Collette, fact-checked by Laura Bullard, engineered by Andrea Kristinsdottir and Rob Byers, and hosted by Noel King.

Transcript at vox.com/today-explained-podcast

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Photo by Justin Merriman/Bloomberg via Getty Images.

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