I'm not sure that Palin was ever intended to be a serious presidential candidate. She is an electoral "Hail Mary" turned celebrity. She was designed as a populist firebrand for low-information, often poorly educated, rightwing voters.
The left used to provide the rural "Palin Demographic" with economic hope, but they dropped the ball in the 60s with social movements that alienated this demographic -- famously dubbed Nixon's silent majority (the white silent majority who resented the Civil Rights movement, the sexual revolution, the antiwar movement, and multiculturalism. Like the Germans of the 1930s (whose religion and traditions were being undermined by liberal secular humanism, cosmopolitanism, and modernism), America's silent majority feels like its values and culture are under siege. This is also why we are seeing so many scapegoats: liberals, gays, terrorists, communists, socialists, and illegals --all of them have replaced the Jew as the shadowy invisible force threatening the social fabric). Therefore, it is understandable why these people are so easily manipulated by the plain spoken patriot who claims to represent "real" blood-&-soil Americans. I'm talking about rugged individualist cowboys like Reagan and Bush, as opposed to northeastern devil-tongued preppy-policy-wonks like Dukakis and Kerry.The Palin Demographic resents the smug pseudo-sophiticated metropolitan liberal elites, with their Ivy league educations and fancy highbrow culture.
The common man is sick of being told that his Bible and Gun are premodern anachronisms. He doesn't want no fancy talk about the geopolitics of oil. He wants simple stories about good versus evil. When Ronald Reagan says "Evil Empire", the common man feels deep pride. Why? Because he trusts Dear Leader deeply.
[The common man loves and trusts Government. That's his dirty little secret. When Dear Leader speaks about evil Soviets or Islamo-terrorists, the common man runs to the store to buy a flag. The common man believes what Government says. If George Bush (aka Government) says something about Saddam Hussein, the common man believes him. The common man trusts government deeply]
Palin was constructed to agitate honest simple folk with quasi-Biblical rhetoric about "evil-doers" who have come to destroy our Sacred Nation.
(This is the oldest trick in the book. Every time a small group of people consolidate power, they manipulate the common man with tales of evil doers who are destroying the country)