Jared Yates Sexton, host of 'The Muckrake Political Podcast' and the author of 'American Rule' says America is built on what he calls "foundational myths," and how stories the United States tells itself, about itself, have often been used as justification for violence and abuse, for generations. Adrian Cheung talks to Sexton about how the doctrine of 'American exceptionalism' has led to this moment of reckoning and where the US is headed next, heading into a pivotal election.