Do you see evidence for that? I haven't followed him closely but I just assume all Bush's are pretty much the same neutral, featureless, worthless RINO inside.
No hard evidence of him being more conservative than his father or brother. Although, he did use his veto pen fairly aggressively at first causing even (R) state legislators to howl because they had thought that it was time for their pork projects to be given a share with a fellow (R) governor. My point was that even if he is to the right for a Bush, he is no conservative. He is still a big government Rockefeller Republican.