Jack Sellers Maricopa County Board of Supervisors - Vice Chairman Jack Sellers Republican Home | Platform Platform Quality of Life Encourage a vibrant economy that utilizes technology to ensure that Maricopa County is a smart region. Intelligent Infrastructure Developing intelligent infrastructure within Maricopa county to help sustain future development and transportation. Autonomous Vehicles maintaining relationships with MAG, Valley Metro, ADOT and the Federal Highway Administration to facilitate the emerging usage of autonomous vehicles in the coming years.