[Willie Green]

Novac doesn't 'know' he thinks he knows.

And maybe Dubya is the one who told Novak himself, and this is just Novak's way of tweaking his nose.

[mnehring]

Not exactly. If the President himself said it or Novak knew he and Rove were behind a conspiracy, his choice of words would most likely be different. It is the subtle words between the major words that make a difference. If Novak knew the President knew, he would have said 'The President knows.'

By saying 'I'm confident the President knows...' is a subconscious way of saying I believe, not I know.

Considering how in the loop Novak supposedly is, that is quite telling.. if he only 'believes' then he is tying the connection himself without any evidence.