Reagan was a real pro at stepping outside the party to talk directly to the people. When he spoke to the Soviets, he spoke directly to the citizens. When he spoke to the unions, he spoke directly to the members. He didn’t lie to them, he said what he believed and many many people came to trust him.
Sarah Palin appears to be taking this same approach. There are a handfull of others out there who do the same but Palin is the one who gets the media attention.
If Sarah wants to be a true populist, she'd better keep her sense of what the people consider to be just. If fact, campaign on that, as well as live by it if elected.