Ohio voters go to the polls today.The close of the polls at 7:30 p.m. officially brings an end to the campaign for Ohio's 18 presidential electoral votes. Elections officials and both sides are preparing for voting challenges after a series of court cases over Ohio voting earlier this year. There are also contested Senate and congressional races, legislative and judicial contests, and statewide and local issues to be decided today. Several school districts have money issues on the ballot today, including Dublin, Licking Heights, Marysville, New Albany and Worthington.