Donald Trump talked over the weekend about deploying the military against an "enemy from within." The Washington Post's Isaac Arnsdorf explains how Trump's comments fit into a broader pattern of alarming campaign promises, and New York Times reporter Shawn McCreesh explains whether Republican voters even take this sort of talk seriously.

This episode was produced by Victoria Chamberlin with help from Eliza Dennis, 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

Support Today, Explained by becoming a Vox Member today: http://www.vox.com/members

Former President Donald Trump dances during a recent town hall. Photo by JEFF KOWALSKY/AFP via Getty Images.

Learn more about your ad choices. Visit podcastchoices.com/adchoices