Former vice president Mike Pence and former New Jersey governor Chris Christie were both early, key allies of Donald Trump in the 2016 presidential campaign. Now, they are both trying to end his political career and claim the GOP presidential nomination for themselves.This episode: White House correspondent Tamara Keith, political correspondent Kelsey Snell, and national political correspondent Mara Liasson.*The podcast is produced by Elena Moore and Casey Morell. Our editor is Eric McDaniel. Our executive producer is Muthoni Muturi. Unlock access to this and other bonus content by supporting The NPR Politics Podcast+. Sign up via Apple Podcasts or at plus.npr.org). ***Connect:**Email the show at [email protected])Join the NPR Politics Podcast Facebook Group).Subscribe to the NPR Politics Newsletter).Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)