Ballots returned to Maricopa County after final count in controversial Arizona election audit was completed Ballots, machines returned to Maricopa County following controversial audit The materials were subpoenaed as part of an audit ordered by the Arizona State Senate that has been the source of various controversies. FOX 10's Bailey Miller reports. PHOENIX - On July 29, elections materials, including ballots and machines that were a part of the audit, were transported back to the Maricopa County Elections Office. This came about after a third and final count was completed on July 28. In all, 2.1 million ballots and machines were packed up at the Veterans Memorial Coliseum in Downtown Phoenix, and shipped back to the elections office.