The Government Accountability Board retracted over 12,000 voter registrations in Wisconsin after citizens failed to confirm their personal information.
The federal government requires states to compare voter databases against drivers license registries and, at times, Social Security records.
According to the Wisconsin State Journal, the GAB and the Milwaukee Election Commission contacted 16,552 people by mail recently. Of these people, 12,431 were taken off voter registries because of inconsistencies between voter databases and other identification databases.
Many of the letters were returned to the postal service as undeliverable. Some of these were because of change of address.
During the past year and a half, the GAB reviewed the names of 777,000 people who registered to vote between 2006 and 2008, according to the Wisconsin State Journal. They have 70,000 people yet to contact.
If citizens have been removed from voting registries, they can re-register at the polls Tuesday.