. >> next on "history bookshelf" james david robenalt talks about his book "the harding love affair: love and espionage during the great war." he recounts the political and personal lives of and senator harding focusing on journal entries and 800 pages of love letters written from 1905 and 1917 between harding and kerry phillips. a woman who would be investigated by the u.s. government for her friendship with alleged german spies. this was recorded at joseph beth booksellers in cleveland in 2009. it is about an hour. james: first question for all of you, does anybody have a gun on them? you got to ask that these days. thanks for coming, thanks to joseph beth for doing this. i have some photographs to show you to go through this tour -- story. it is one of the most fascinating stories of american history that has not been told. i think you will find this very interesting. let me start as i did a couple weeks ago. i launched the book in marion, ohio where harding is from here -- from theory of -- from. i started off right saying to that crowd who loves harding that there are four thing