(1) Jesus. Palin believes that Jesus Christ is the only way to Heaven. She knows she is right. Many Americans believe the same thing. They "know" they are right and they "know" that the other 4 billion people in the world are wrong and going to hell. Of course, there are many Christians (and non-Christians) who believe strongly in the teachings of Christ, and they also have respect for other belief systems (I actually thought McCain was one of these people before he chose Palin). However, I think that Palin supporters are different. They are motivated by issues such as abortion and stem cell research and feel very strongly that it is their moral obligation to vote for McCain/Palin. The fact that Palin is embarrassingly uninformed about the world, and unable to speak in grammatically correct sentences is irrelevant to them.
(3) Money. This one manifests in different ways. For example, many people say they believe in smaller government. Really, they believe in lower taxes, because if they really believed in smaller government then they would not want to the government to interfere in people's personal lives (e.g, defining marriage). People are afraid of higher taxes and irresponsible government spending. Here is what confuses me- isn't this war an example of irresponsible government spending? I think it is, but for many in the oil business, the defense business and the reconstruction business, there is money to be made! Which brings me to the oil issue and the idea of a bunch of McCain/Palin supporters chanting, "Drill, Baby, Drill!" Absurd.