University of Maryland political scientist David Karol joins Matt to explain the consequences of presidential nomination reform. Guest: David Karol, (@DKarol) Government & Politics professor, University of Maryland Host: Matthew Yglesias (@mattyglesias), Senior correspondent, Vox More to explore: Subscribe to Impeachment, Explained on Apple Podcasts, Spotify, Stitcher, Overcast, Pocket Casts, or your favorite podcast app to get stay updated on this story every week. About Vox Vox is a news network that helps you cut through the noise and understand what's really driving the events in the headlines. Follow Us: Vox.com Facebook group: The Weeds Learn more about your ad choices. Visit podcastchoices.com/adchoices