It is a certainly a fault of the American people as much as it is Bush's/Neocons.
The system in the United States is so cozy, that people don't feel the need to think critically. People will vote on a candidate out of something they can relate to, like being a dumbass, or believing in fairy tales. About 50% of people don't seem to care about the economy, or the advancement of our country in terms of academic achievement, but rather if people believe in a creator or not, and their views on abortion. Even a quarter of the 50% are simply against the wrongs because their wallets are shaken or because they simply cannot ignore the shit that has been going on for the last 8 years or so. Who knows, the quarter remaining maybe be intelligent and caring about the path of their nation, but they sure as hell can't do anything against a 75% majority hell bent on fucking this country over.
This time it isn't illegal aliens, or blacks destroying this country. This time it's the people who've always been associated with its very core, and that's white working-class America.. Primarily the bible belt and the south, who're the strongest supporters of inept candidates such as Palin.
For this colossal fuck up there's no excuse.