Alabama or Mississippi. I think his dad was a Democrat chairman of one of those states.
http://en.wikipedia.org/wiki/William_Rivers_Pitt
William Rivers Pitt (born 1971) is a writer and current editorial director of Progressive Democrats of America, where he writes a blog titled "We the People." Pitt is the former managing editor of the left-wing commentary website truthout.org. He is also a frequent contributor on the Internet forum Democratic Underground under the username "WilliamPitt."
He is the author of the books War on Iraq and The Greatest Sedition is Silence.
Pitt was born in Washington, D.C., and lived several years in Alabama (where his father, Redding Pitt, now chairs the state Democratic Party) before eventually moving to Boston.