The candidates who might actually rock the boat and REALLY try to shrink the budget are the candidates that the Establishment want to destroy or ignore. Ron Paul, Sarah Palin, Michelle Bachmann ... possibly Rick Perry. These candidates are each unique, of course, and do not approach government in exactly the same way, but they all seem serious about changing Washington.
The media clearly doesn't want that to happen.
You forget Rick Santorum... During the FOX debates, nearly an hour passed before Rick got a question.