This episode of Whistlestop travels back to April 4, 1841, the death of president William Henry Harrison, and a flaw in the Constitution that needed fixing.  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 maybe 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:[email protected]