Flashback from 9/16/2003: slate.msn.com: Did Rove Blow a Spook's Cover? :

Q: On the Robert Novak-Joseph Wilson situation, Novak reported earlier this year quoting "anonymous government sources" telling him that Wilson's wife was a CIA operative. Now, this is apparently a federal offense, to burn the cover [of] a CIA operative. Wilson now believes that the person who did this was Karl Rove. He's quoted from a speech last month as saying, "At the end of the day, it's of keen interest to me to see whether or not we can get Karl Rove frog-marched out of the White House in handcuffs." Did Karl Rove tell that—

A: [Scott McClellan]: I haven't heard that. That's just totally ridiculous. But we've already addressed this issue. If I could find out who anonymous people were, I would. I just said, it's totally ridiculous.

Q: But did Karl Rove do it?

A: I said, it's totally ridiculous.