this week, ken walsh explores the relationship between u.s.president and african american white house workers. the former president of the white house correspondents association shows that race relations and that the president's home often reflected those in american society. he talks with author and educator, juliann naco. >> host: kenneth walsh, this book, "family of freedom" has a fascinating piece of work. i'm actually nghia see how because you actually -- you're talking about african-americans in the white house, both as the cabinet, but also as servers, enslaved people. talk a little bit about what motivated you to do this. >> a couple things. as a white house correspondent i covered since 1986 full-time. there is always super race to the president come in different ways to get behind the curtain in the public relations and so want to see what they were really like. i've written for other books in one of try to do is find some prisons to look at them through to find something different. >> host: if i might say, your book about the presid