Well, here you had a city that was selling more cars than ever before, that had this wondrous music being created, that was so vital to the labor and civil rights of this country, and yet it was dying and didn't see it, except for some sociologist at Wayne State University who predicted that Detroit was losing population by a half-million by the end of that '60s decade, and that that trend would continue taking away its tax base.

It seemed that I could tell the whole story pretty powerfully in those 18 months between October of '62 and the spring of '64 when they were all at their peak. And yet you could see some of the shadows of Detroit's demise coming.

And that John F. Kennedy uttered the first variation of "ask not what your country can do for you" in Detroit on Labor Day in 1960. So Detroit was really central to Democratic politics United States. Every Democratic candidate would start their fall campaigns in Cadillac Square.

It was a time of uncommon possibility and freedom, when Detroit created wondrous and lasting things. But life can be luminescent when it is most vulnerable.

I discovered in writing the biography of Bill Clinton that it is actually easier to write a biography of someone who is dead. Although you can't interview them, you have a fuller perspective on their whole life after they're gone and people are more willing to talk about them.

I want my books to last, to stand the test of time, and to do that I focus on the forces that shape the subject - the cultural and sociological geography - to capture them in a way that will explain them no matter what they are doing.

Natural politicians are skilled actors, recreating reality, adjusting and ad-libbing, synthesizing the scenes, saying the same thing over and over again and making it seem that theyare saying it for the first time.