Congressman Roger Williams has done something almost no one alive today can claim: he’s personally met—and shaken the hand of—every U.S. president from Harry Truman to Donald Trump. In this episode of Y’all-itics, he opens his personal archives and shares the stories behind each encounter, from meeting Truman under the bleachers at a baseball game to encountering Carter while jogging without a shirt. Hear which commander-in-chief had the firmest grip and who had the softest in this episode.