Is America Ready to Vote? State Preparations for Voting Machine Problems in 2008 asks what steps each state has put into place to insure against disenfranchisement in the event of election system failures. These might include broken machines, damaged voting system cartridges, software glitches, misprogrammed tally servers, and a range of other likely troubles.
Check out this report:
http://www.brennancenter.org/content/resource/is_america_ready_to_votehttp://www.brennancenter.org/page/-/publications/is.america.ready.to.vote.pdfSix states received the best rankings (between "generally good" and "excellent") in all relevant categories: Alaska, California, Minnesota, Missouri, North Carolina, and Oregon. Ten states received the worst rankings ("needs improvement" or "inadequate") in three of four categories: Colorado, Delaware, Kentucky, Louisiana, New Jersey, South Carolina, Tennessee, Texas, Utah, Virginia