From Holden:

Via Josh Marshall we learn that Karl Rove testified before the grand jury investigating the Plame affair today:

President Bush’s top political adviser, Karl Rove, testified Friday before a federal grand jury trying to determine who leaked the name of an undercover CIA officer.

Rove spent more than two hours testifying before the panel, according to an administration official who spoke only on condition of anonymity because such proceedings are secret.

[snip]

Democratic presidential candidate John Kerry’s campaign was quick to pounce on news of Rove’s appearance, with senior adviser Joe Lockhart issuing a statement calling on Rove and other aides to “come clean about their role in this insidious act.”

“If the president sincerely wanted to get to the bottom of this potential crime, he’d stop the White House foot-dragging and fully cooperate with this investigation,” Lockhart said.