Cook County Voting Records Cook County Voting Records Copy link Recent Reports: The Cook County Board During President Preckwinkle’s Second Term : Cook County Board of Commissioners Report December 2014 – December 2017 Past Reports: The Cook County Board in the Preckwinkle Era: Cook County Board of Commissioners Report - Release date: June 3, 2014 Cook County Wars: Cook County Board of Commissioners Report, February 23, 2007 - December 1, 2009