When you talk with people like Hertzberg about Carter, it’s clear that they think of him as a flawed leader, but such an intelligent, determined, decent and compelling person that they want him to have been a great president. Only 44 men have been president. What was Carter missing that Lincoln and FDR possessed? At the Winter Weekend, I decide to ask Carter what he thinks are the qualities necessary to be a successful president. In the hours I spend with him over the course of five formal interviews and other casual interactions, his answer is the most revealing thing he tells me.