[hat tip Patriot Daily.] Update: Reddhedd weighs in.
Also, Byron York of National Review has an article today outing Scooter Libby as Woodward's source but that makes no sense to me. Woodward's source didn't go to Fitzgerald until after the Libby indictment. Libby wouldn't talk to Fitz to correct his prior testimony after being indicted.
Rove's supporters believe it would be a weak case, a good deal weaker than the perjury and obstruction case Fitzgerald has made against Libby, which itself was somewhat undermined when it turned out that there was at least one significant part of that story — Libby's conversations with the Washington Post's Bob Woodward — that Fitzgerald didn't know about at the time he indicted Libby.
Update: York was probably referring to Bob Woodward's disclosure that he talked to three people, his source, Andrew Card and Libby. As to Libby he said:
I also testified that I had a conversation with a third person on June 23, 2003. The person was I. Lewis "Scooter" Libby, and we talked on the phone. I told him I was sending to him an 18-page list of questions I wanted to ask Vice President Cheney. On page 5 of that list there was a question about "yellowcake" and the October 2002 National Intelligence Estimate regarding Iraq's weapons programs. I testified that I believed I had both the 18-page question list and the question list from the June 20 interview with the phrase "Joe Wilson's wife" on my desk during this discussion. I testified that I have no recollection that Wilson or his wife was discussed, and I have no notes of the conversation.