Former President Bill Clinton proudly wears the title of "citizen," which is also the title of his new book, "Citizen: My Life After the White House." He sits down with correspondent Tracy Smith to talk about making a difference outside of elected office.

The former president writes about his life after leaving office, when he was determined to "live in the present and for the future."

An early look at his upcoming memoir reveals how a reporter questioning his handling of the 1990s affair triggered what he described as not his “finest hour.”