This comprehensive list pretty well captures it for me, at least as a description of those Republicans who still strongly support Bush.  Here’s a few of my favorites:

• You must believe that folks who work for their money should be taxed at a high rate, but those who get their money for nothing should be exempt from taxation.
• You must believe that being “morally upright” means hating gays and liberals, and anyone else who doesn’t hate gays and liberals.
• You must agree that racking up huge amounts of debt and handing it off to future generations is worth the few thousand extra in tax breaks given to your wealthy “investors.”
• You must believe that government should stay out of people’s financial lives, but should socially engineer any behaviors deemed “unacceptable.” That the government should stay out of our checkbooks, but feel perfectly at home on our bedrooms and doctors offices.