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.

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