David EisenbachDavid Eisenbach, Ph.D., is the host of "Ten Things You Don't Know About . . ." on H2. He is an award-winning historian who teaches American political history at Columbia University and is the co-author of One Nation Under Sex. He was the creatr and host of the two-hour History Channel special, The Beltway Unbuckled, about how presidential sex shaped American history. He lives in New York City. Read More Read Less