If I may add...
The Reason President Bush was re-elected is because he was able to unite ALL Christians in a common theme, belief or goal (you choose). For example: The Same Sex Marriage issue.
This was the "genius" of his campaign. Had he not united ALL Christians, the Evangelical Christian vote wouldn't have been enough. This was learned from his father's campaign which failed as a result of not being able to unite all Chrisitians.
This is the point.