On May 5, Georgia Governor Sonny Perdue signed SB 86, which requires voters to submit documents (such as a birth certificate or naturalization papers) when registering to vote. The only other state with such a law is Arizona. See this news story. It will be interesting to see if the U.S. Justice Department approves the change. Georgia is covered by Section 5 of the Voting Rights Act, so Georgia can’t change any election law without getting approval.