I hear this all the time and it gets old. Bush campaigned as who he is not as some ultra conservative. If he had a view that has had to change since 9/11 it doesn't alter his consistant views.
I didn't suggest he'd run as an ultra-conservative. He ran as a conservative. Unfortunately, since he sees the government as the answer to society's problems and not a big part of the problem and he's happy to expand the budget dramatically to do it he's not a Reagan Republican but a Rockefeller Republican. He's not a conservative but, because it's essential in winning Republican national primaries, he said he was. Same as his father.
The reason you hear it all the time is that it's true.