David Fahrenthold, a political reporter with The Washington Post discusses his investigation into Donald Trump's charitable donations. Filmmakers Ken Burns and Artemis Joukowsky discuss their new film, "Defying the Nazis: The Sharp's War." Affinity Konar on her novel, Mischling, about a set of twins who arrive at Auschwitz and become part of Josef Mengele’s experiments. Champion open-water swimmer Lynne Cox on her new book Swimming in the Sink: An Episode of the Heart. Journalist and author Ian Brown on his memoir Sixty: The Beginning of the End, Or the End of the Beginning?