Here's a couple of maps that I find interesting. The first
shows the voting patterns in the '08 election.
The second, thanks to the WSJ, (subscription may be required)
shows the states that require or ask for some form of ID before letting you vote. Correlation between the Blue states in the first map, and the white ones in the second isn't perfect, but is strikingly close. Some of the state shown in yellow here have instituted this requirement only recently.
Who knows, maybe the Dems protests that requiring I.D. to vote suppresses voter turnout may be true. The obvious solution is to set up more voter registration booths along the southern border and at every graveyard, although it may raise eyebrows outside of Arkansas at how alike so many democrats look.