Here's one of just many links:
http://www.ibiblio.org/pub/electronic-publications/stay-free/books/deeptrth.htm
scroll down. " Woodward, the son of a small-town Republican judge..."
It's common knowledge that he was a Registered Republican when he was investigating Nixon. It's mentioned in the book "All the President's Men" and there's a classic scene in the movie where Dustin Hoffman as Bernstein finds out that Woodward is a Repubican. I think they are interviewing a witness and when she says she's a Republican, Woodward/Redford says "I am too." And Berstein does a double-triple take.
"It's common knowledge that he was a Registered Republican when he was investigating Nixon."
LOL. Woodward constantly claimed he had been a Republican to buttress his impartiality in his coup against Nixon.
He claimed to have worked for some local GOP candidate in 1965, for instance.
Woodward lives in Georgetown and is married to a writer for the New Yorker. He is the deputy manager (or whatever) at the Washington Post.
He's no Republican.