Presidents FDR, Bush, Obama and others delivered partial truths to the American people. Were they good leaders?Whistlestop is Slate’s podcast about presidential campaign history. Hosted by our political correspondent and Political Gabfest panelist John Dickerson, each installment will revisit a memorable (or even a forgotten) moment from America's quadrennial carnival. Podcast production and edit by Jocelyn Frank. Research by Brian Rosenwald. 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.comLearn more about your ad choices. Visit megaphone.fm/adchoices