10 Questions for Robert Caro

The Passage of Power is your fourth book so far on President Lyndon B. Johnson, to whom you have devoted more than 3,000 pages and 35 years of your life. Why Johnson?
Because my books are really about political power in America in the 20th century, and no one understood it better than Johnson. We're taught in high school and college — in textbooks — that in a democracy, power comes from the ballot box. It's the forces that create power that are not evident at the ballot box — that's what I'm trying to explain in my books.