If Karl Rove goes down in this investigation it'll be a disaster for the president, both in terms of the damage occasioned by such a high-level White House indictment and, frankly, because he needs the guy like most of us need legs.
But this WHIG thing is a whole 'nother level of hurt.
This group was the organizational team, the core group behind all the shameless crap that went down in the lead up to the Iraq war -- the lies about the cooked up Niger story, everything. If Fitzgerald has lassoed this operation into a criminal conspiracy, the veil of protective secrecy in which the whole operation is still shrouded will be pulled back. Depositions and sworn statements in on-going investigations have a way of doing that. Ask Bill Clinton. Every key person in the White House will be touched by it. And all sorts of ugly tales could spill out.

"Lawyers familiar with the investigation believe that at least part of the outcome likely hangs on the inner workings of what has been dubbed the White House Iraq Group. Formed in August 2002, the group, which included Messrs. Rove and Libby, worked on setting strategy for selling the war in Iraq to the public in the months leading up to the March 2003 invasion. The group likely would have played a significant role in responding to Mr. Wilson's claims."