Public Policy Polling has the number of the day:
Thirty-eight percent of Republicans! Twenty-two percent of Democrats -- which is really something when you consider that the Democratic vote in federal elections is mostly black.
I can't get enough of these Public Policy Polling surveys, and to tell the truth I wish they were doing more. How many Republicans in North Dakota think that Barack Obama might be the antichrist? How many Democrats in Cook County, Illinois think the planes that hit the World Trade Center were actually holograms? How many people think tax cuts always increase revenue?