ST. PAUL, Minn. - A report from Minnesota's legislative auditor says state law has no consistent standard for whether the governor should be able to use a state airplane to travel to political events.

The auditor's office issued its report Thursday. It's in response to a complaint from a Republican-aligned group that questioned whether Dayton should be able to use the plane for trips that involve political events..

Dayton's re-election campaign has reimbursed the state for such travel. The auditor's report says state law doesn't require such a reimbursement. It recommends lawmakers clear up the issue.

The report does say it was a violation of state law for one of Dayton's political aides to ride on the plane with him. In response, Dayton's office says that was an error and will not happen again.