FILE - In this Nov. 12, 2015 file photo, Alan Durning, author of an initiative passed by Seattle voters that created the nation's first voucher system for campaign contributions, poses for a photo in his office in Seattle while holding an artist's depiction of a possible design for the vouchers. A lawsuit filed Wednesday, June 28, 2017, is challenging the voucher system for publicly financing political campaigns. (AP Photo/Ted S. Warren, File)
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