"Certainly"?
If you are a psychic or were a fly on the wall you may be able to claim this. Otherwise, it's pure conjecture.
The important thing is that Bush-Cheney were united for most of what was important.
The MSM will pick at the minority and try to get conservatives in on the gossip.
"..He was the victim of a serious miscarriage of justice, and I strongly believe that he deserved a presidential pardon. Obviously, I disagree with President Bush's decision.."
That is a direct quote and for public consumption. That is one of four total instances of public disagreement in eight years. Cheney views Libby as a loyal subordinate who got the shaft.