(CNN) - A spokesman for Republican Christine O'Donnell's Senate campaign is suggesting nothing improper was committed when it paid out funds to O'Donnell's mother, Carole, earlier this year.
"Carole O'Donnell, Christine's mother, did receive money for her services rendered on accounting and the FEC reporting for the campaign before the treasurer came onto the campaign," a spokesman told CNN Friday.
As first reported by The Daily Beast, records filed with the Federal Elections Commission show the campaign paid $3,500 to Carole O'Donnell between February and July of this year. The expenses are listed under "bookkeeping" and "financial consulting services."
It is not illegal for candidates to employ family members on their campaigns, but O'Donnell has faced a series of questions about how she makes use of her campaign finances after her former campaign manager alleged she has used funds in 2008 for personal uses, including rent.
O'Donnell, the surprise winner in Tuesday's Delaware GOP Senate primary, has justified the rent expenditure by saying her home doubled as a campaign office.
CNN Senior Producer Kevin Bohn contributed to this report.
Updated 1:32 p.m.