Education isn't always a top national concern for voters, but schools consume so many state and local tax dollars that it is impossible to ignore in individual races. Just ask Adrian Fenty, the Washington, D.C., mayor ousted in a primary this month, due in part to his controversial schools chief Michelle Rhee. That notoriety is a shame, says Department of Education Secretary Arne Duncan. "Education has to be the one issue where we put politics and ideology to the side," he told reporters this week, adding that he's trying to get Rhee to stay on under the presumptive new mayor, Vincent Gray. Duncan's plans for October? Hitting the campaign trail and fundraising circuit for Democrats, naturally.