Scratch one of the least worst candidates ... and what do you see? A big-government public money spender. Scott Walker, of all people, is going to approve spending $400M tax dollars for a basketball stadium.
Why would he do this? Because it's politically advantageous, of course. The voters want their pacifier stadium, just as the Roman citizens wanted their circus and gladiator fights. A politician who actually believed in something, and stuck to that, is almost certainly unelectable.
Sometimes I think a dictatorship wouldn't be so bad. At least, not if I got to pick the dictator :)