At his rally in Minneapolis earlier this week, President Trump received voluntary security from an unexpected source: the Oathkeepers, a far-right militia associated with the white supremacy movement. This isn’t the first time that the Trump administration has crossed paths with such groups, which have become more active in recent years.

To learn more about these groups, Lawfare senior editor Scott R. Anderson recently spoke with journalist Leah Sottile, who is the host of the podcast Bundyville, which does a deep dive on America’s far-right militia movement. Together, they discussed these groups’ origins and ideologies—and what they can tell us about homegrown radicalization in modern-day America.

Leah Sottile’s podcast Bundyville is produced in cooperation with Oregon Public Broadcasting and Longreads.