http://en.wikipedia.org/wiki/Help_America_Vote_Act
Voter identification
HAVA requires any voter who registered by mail and who has not previously voted in a federal election to show current and valid photo identification or a copy of a current utility bill, bank statement, government check, paycheck, or other government document that shows the name and address of the voter. Voters who submitted any of these forms of identification during registration are exempt, as are voters entitled to vote by absentee ballot under the Uniformed and Overseas Citizens Absentee Voting Act.
voters have to show i.d. to register. so obviously all registered voters have id. so why is it so hard for them to produce said i.d. on election day??????