From top left, Jennifer Custer, Jessica Biggs, Victor Henderson, Hilario Dominguez and Sendhil Revuluri are running for CPS Board President. [Campaign photos]

Of the five candidates competing in the first at-large Chicago school board election, two are current members of the Chicago Public Schools (CPS) Board of Education, one is a former board member, one sits on the board of a local charter network and the fifth holds a key political role with the Chicago Teachers Union (CTU).