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In this photo taken Aug. 8, 2017, Megan Mitchum decorates the outside of a classroom in preparation for the start of the school year at the Mountain View Christian Schools in Las Vegas. More than a third of U.S. states have created school voucher programs that bypass thorny constitutional and political issues by turning them over to non-profits that rely primarily on businesses to fund them. But the programs are raising questions about transparency and accountability at a time when supporters are urging that it be expanded into a federal program. (AP Photo/John Locher)