The challenger trailing a veteran state representative by 72 votes in Tuesday's Democratic primary says he wants to ensure every vote is counted.
Former web journalist Will Guzzardi is monitoring final tallies in his bid to overcome Rep. Toni Berrios for the Democratic nomination to the seat in Chicago.
Votes from all but one of 84 precincts have been counted. Berrios has 50.5 percent of the vote to Guzzardi's 49.5 percent.
A spokesman for the Chicago Board of Election Commissioners estimates that -- based on turnout -- the remaining precinct could have 150 votes. He says most absentee ballots have been counted.
Berrios was elected to the House in 2002. She is the daughter of Cook County Assessor Joe Berrios.