For tonight's Conversations with Great Minds - Thom is joined by award-winning author David O. Stewart. Formerly a trial lawyer here in Washington, D.C. - David is also the president of the Washington Independent Review of Books. He's written a number of books about American history as well a mystery novel and won the 2013 History Prize from the Society of the Cincinnati. David Stewart's new book - "Madison's Gift: Five Partnerships that Built America" - is a fascinating look into the friendships that made James Madison into the revolutionary leader he was.