Sarah Palin is the culmination, the end result of many years of the Republican party's outreach and seduction of the most radical elements of the right. The extremists, the Christian Identity people, the regional separatists, the militias, the whackos and the crazies. This outreach was started by Helen Chenoweth, back in the early 90's, when it became apparent that minorities were not rushing to join the Republicans and the party felt that by tacking right, they would pick up votes and ground troops.
The views that Palin and others ascribe to are not new. They have been around for quite a number of years, amongst quite a number of groups. They can best be described as "the views of us and them". Essentially, this says that everyone who is not the "us" is the enemy. Anyone who is different in skin color, ethnic background, religion or whatever is the enemy. History shows that the lengths the adherents to this philosophy will go, to strike against this enemy are sometimes quite extreme. As in killing, bombing, robbery and more. Oh, the greatest enemy is the federal government, which stands between them and their aspirations, and collects taxes along the way. Make no mistake: The Alaska Independence Party was, at its core, about just such things.
Sarah Palin is the end result of all this. The Republicans know they are running from a deficit position and they need their fingiest of fringe base. They don't seem to care that in empowering these positions, they open a Pandora's Box. Of course, the Republicans that are peeling away from their party and endorsing Obama, like Jim Leach and potentially Colin Powell, know this intimately. You can be sure there are more. They just aren't talking about it to the press.
For the real background on all this mess, I will once again suggest you go dig around in here:
http://dneiwert.blogspot.com/Dave is the expert on Pacific Northwest radical right. You will be illuminated by his writings and insights. Another reading suggestion is the book "The Silent Brotherhood". It will let you know what happens when these people take it to its farthest extreme.
Happy reading.