How much do you know about President William Howard Taft?We thought so. And, no, he didn't get stuck in his bathtub.He's actually notable for something else entirely: he's the only person to have served as both President and Chief Justice of the United States. Yeah, beats the bathtub story, doesn't it?We'll give you the facts, courtesy of the friendly staff at the Taft National Historic Site in Cincinnati, where Stewart and his son Tom recently went for a visit. Join us!