[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/05/18/art.lincoln.ballot.jpg caption="Sen. Blanche Lincoln was able to cast a provisional ballot Tuesday."]
(CNN) – Politicians can usually count on at least one vote on Election Day: their own.
But Sen. Blanche Lincoln ran into a bit of trouble Tuesday in Arkansas.
During the Election Day rite-of-passage photo opportunity in which candidates cast a vote – presumably for themselves – Lincoln hit a snag. The candidate was asked to produce her driver's license and voter ID card before voting at a polling station in Little Rock, because records indicated she had already voted absentee.
Lincoln's campaign staff was aware of the problem, and the candidate was allowed to fill out a provisional ballot.
Lincoln said she typically votes absentee, but notified officials last month she intended to vote in person for this election - but voter rolls were not updated to reflect the request.
"We normally do this, you have to just fill out a form to ensure that they know that you haven't voted twice," Lincoln told reporters after being allowed to vote using a provisional ballot.
According to Kent Walker, Chairman of the Pulaski County Election Commission, Lincoln's provisional ballot will be verified by the county clerk's office within the next 1-2 days, but won't be certified officially with all the election returns until 10 days after the primary - when all the results become official.
Walker said his office reviewed the issue and Sen. Lincoln did file for absentee ballots for all elections this year, something that is common among military families and individuals who believe they may be out of state on Election Day.
Lincoln is locked in a tight primary battle with Lieutenant Gov. Bill Halter and will need to defeat him in Tuesday's Democratic primary before moving on to the general election.
–CNN's Deirdre Walsh contributed to this report.