Ted Kennedy, Jimmy Carter, and the Battle of the Robot Rule

In this episode of Slate's podcast about presidential campaign history, chief political correspondent John Dickerson concludes the tale of the 1980 Democratic primary fight between challenger Ted Kennedy and incumbent President Jimmy Carter. Join Slate Plus for full, ad-free access to Whistlestop and your other favorite Slate podcasts. You can subscribe directly from the Whistlestop show page on Apple Podcasts and Spotify. Or, visit slate.com/whistlestopplus to get access wherever you listen. Whistlestop is sponsored by Casper, an online retailer of premium mattresses for a fraction of the price. Casper mattresses come with free delivery and returns within a 100-day period. Right now, get 50 dollars toward any mattress by visiting Casper.com/whistlestop and using the promo code WHISTLESTOP. Learn more about your ad choices. Visit megaphone.fm/adchoices