Yes, she is.
Sarah Palin doesn't believe in evolution and thinks that creationism should be taught in every classroom. She has said she does not believe in global warming and wants to take polar bears off the endangered species list because she assumes that they are fine because the polar ice caps are, in her mind, not melting.
She is currently under investigation for abuse of power after trying to get her sisters ex husband fired after a bad divorce.
She was once asked if she was angered by the addition of "under god" to the pledge of allegiance and her response was "if its good enough for the founding fathers, its good enough for me", which might seem like a decent answer until you realize that the pledge of allegiance was written by a socialist named Bellamy about 100 years after the founding fathers founded anything and it wasn't until the cold war that "under god" was added.
she wants to drill for oil in alaska and stands for the aerial slaughter of wolves and bears in the wild.
prior to her candidacy she announced that she did not think the idea of her being the vice president is realistic.
after her candidacy was announced she announced she didn't know what a vice president does from day to day and also didn't know what john mccains stance on the war was because, as she said, she doesn't pay attention to iraq. (keep in mind her own son is being sent to iraq this september)
if she isn't an idiot, then neither is george w bush for leading us into a criminally unjust war and neither is john mccain for horribly misrepresenting the middle class americans that make up the majority of this country. republicans should be ashamed for ruining this great country. vote obama.