Longtime Chicago alderwoman Toni Preckwinkle has been elected Cook County board president over Republican Roger Keats and Green Party candidate Tom Tresser.With 76 percent of precincts reporting, Preckwinkle had about 69 percen
With more than half of Cook County precincts reporting, Democrat Toni Preckwinkle has a big lead in the race to replace Cook County Board President Todd Stroger.