Minnesota regulators say Rep. Ilhan Omar violated state campaign finance rules and must reimburse $3,469.23 in campaign funds that were improperly directed to accounting expenses and out-of-state travel.

The Minnesota Campaign Finance and Public Disclosure Board ordered Omar to reimburse her campaign committee for the payments Thursday. She must also pay a $500 civil fine.

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As a candidate for the Minnesota statehouse in 2016, Omar made a $1,500 payment to her lawyer, who used the funds to compensate Frederick and Rosen Ltd., an accounting firm. The payment was made so the campaign committee could independently obtain the candidate’s tax returns in order to rebut a blogger’s unfounded accusation that she married her brother.

During that process, the accounting firm flagged some errors in Omar’s tax returns — an improper personal benefit from a campaign expense, the board determined.