WEC and clerks share responsibility for maintaining the accuracy of voter registration records. Statutes require clerks to use WisVote to verify the accuracy of information provided by individuals who register to vote.
Statutes require WEC and the Department of Transportation (DOT) to attempt to verify personally identifiable information provided by individuals registering to vote with information on vehicle registrations, driver’s licenses, and state identification cards. We found that the personally identifiable information provided by 93.8 percent of the 957,977 individuals who registered to vote from January 1, 2020, through November 3, 2020, matched DOT’s information.
In examining the voter registration records of all individuals who voted absentee in the November 2020 General Election, we found 70 records in which either driver’s license or state identification card numbers matched the numbers in 70 separate records. The names and dates of birth of individuals associated with 24 of the 70 records matched similar information in 24 other records, suggesting that the 24 individuals had two active voter registration records. The data indicated that 4 of the 24 individuals may have voted twice in November 2020. We provided WEC’s staff with the names of these 24 individuals.
WEC obtains personally identifiable information related to deceased individuals from the Department of Health Services (DHS) and information related to those with ongoing felony sentences from the Department of Corrections (DOC). WisVote automatically compares this information with personally identifiable information in voter registration records and notifies the relevant clerks whenever potential matches are made. WEC’s staff instruct clerks to either inactivate a given record or determine that the potential match was erroneous and allow a given record to remain active.
We analyzed the extent to which clerks had acted on the potential matches from January 1, 2020, through November 3, 2020, including 33,473 potential matches based on information from DHS and 2,256 potential matches based on information from DOC. If a clerk does not act on a potential match for a given individual, WEC’s staff are uncertain whether the voter registration record is accurate. As of June 2021, clerks had either inactivated the voter registration records or allowed the records to remain active for all but eight individuals associated with potential matches based on information from DHS. As of September 2021, clerks had done so for one individual associated with potential matches based on information from DOC.
WEC did not have written data-sharing agreements with DOT or DHS at the time of our audit, and its agreement with DOC contained outdated information. We recommend WEC’s staff work with WEC to execute agreements with these three state agencies and improve how they identify potentially duplicate voter registration records.