This episode of Whistlestop travels to June 1st, 1787 when America’s founders faced a challenge: the nation couldn’t depend on the good will of the states to keep itself unified but there wasn’t a mandate for new rules to be made either. Whistlestop is Slate's podcast about presidential history. Hosted by Political Gabfest host John Dickerson, each installment will revisit memorable moments from America's presidential carnival.Love Slate podcasts? Listen longer with Slate Plus! Members get bonus segments, ad-free versions, exclusive podcasts and more. Start your two-week free trial at slate.com/podcastplus.Email: whistlestop@slate.com. Podcast production by Jocelyn Frank. Research by Brian Rosenwald and Elizabeth Hinson. Learn more about your ad choices. Visit megaphone.fm/adchoices