This Website, called VoteBuilder, is the origin of a dispute between the Local Democratic Party, and the Hamilton County Election Commission.
Democratic party chairman Paul Smith described VoteBuilder as the most widely used resource for candidates to reach potential voters.
"Not only the Democrats but the Republicans, too, have a hard time reaching the people they need to contact to get them their message," Smith says.
Candidates often use the site to send mailers and make calls, especially to new voters.
Democratic party activist Jane Bowen, says the concern stemmed from realizing the site incorrectly reflected her voting history...and learning she wasn't alone.
"The fact they said this has affected several thousand and they don't know who, so it's very important that Democrats are aware that there could be inaccuracy in how they are listed in vote builders," Bowen says.
Bowen says it was Administrator of Elections, Charlotte Mullis-Morgan who told her about the high number of discrepancies that could exist.
Mullis-Morgan tells WDEF she is not very familiar with VoteBuilder.
As for the incorrect recordings, she says, people make mistakes, and the Election Commission has no way of noting an incorrect recording until it's brought to their attention because of state law.
"You don't register to vote as a Democrat or Republican. You choose which party you want to vote in on Primary Day," Mullis-Morgan says.
If any voters do find a discrepancy within their voting history, a trip to the Election Commission could solve the problem within about five minutes.
In Hamilton County, Brittany Shaw, WDEF News 12.