It’s not just Karl Rove anymore that the White House has to answer for. It’s also I. Lewis “Scooter” Libby, the chief of staff to Vice President Cheney.
We already know that it was a complete falsehood when Scott McClellan said in 2003 “it’s simply not true” that Rove was “involved in leaking classified information.” It was similarly false when McClellan denied that Libby was involved in the leak.
As reported by the Washington Post, Libby served as a source for Matt Cooper:
In a conversation that same day [July 11, 2003], Rove told Time magazine’s Matthew Cooper that Wilson’s wife was in the CIA and authorized the mission to Niger A day later, Cheney’s top aide, I. Lewis ‘Scooter’ Libby, told Cooper he had heard the same thing about Plame
And could he also have been Judith Miller’s source?:
While media coverage in recent days has focused on conversations White House senior adviser Karl Rove had with reporters, two sources say Miller spoke with Vice President Cheney’s chief of staff, I. Lewis “Scooter” Libby, during the key period in July 2003 that is the focus of Fitzgerald’s investigation. The two sources, one who is familiar with Libby’s version of events and the other with Miller’s, said the previously undisclosed conversation occurred a few days before Plame’s name appeared in Robert D. Novak’s syndicated column on July 14, 2003.
But remember what McClellan said on October 10, 2003:


