According to Peggy Noonan, the Hutchison camp was disappointed at the choice. I think she probably has the inside scoop since the standard practice is to say, "Oh, no, I don't want it." A few weeks ago would have been about the time Hutchison was told that it wasn't going to be her. Palin also expressed doubt about the whole idea of being the VP nominee (http://www.youtube.com/watch?v=006axc2aELE).