Cook County is more than halfway through a multiyear project that aims to make solar energy more affordable for residents.

Cook County is ahead of schedule on its goal to reduce greenhouse gas emissions 80 percent by 2050, a new report shows.

With a two-year decline in jail population, Cook County is demolishing some older jail buildings that once housed inmates.

A penny-per-ounce soda tax could be coming to Cook County. We talk with Cook County Board President Toni Preckwinkle about that and her 2017 budget goals.

Cook County Board President Toni Preckwinkle joins us to discuss the huge budget gap facing the county – and how she wants to tackle the problem.

Ambitious plans to redevelop the vacant old Cook County Hospital building. Why County Board President Toni Preckwinkle thinks it might actually happen this time.

Hear what viewers had to say about Toni Preckwinkle's comments on the state budget stalemate and our candidate forums for the 4th and 7th Congressional Districts when we read feedback from the "Chicago Tonight" website, and our Facebook and Twitter pages.

Reaction to Gov. Bruce Rauner's second budget address from Cook County Board President Toni Preckwinkle, who says no state budget means layoffs are around the corner.

Cook County Board President Toni Preckwinkle is calling for the resignation of Cook County State's Attorney Anita Alvarez in the wake of the shooting death of Laquan McDonald. Carol Marin talks with Preckwinkle about the crisis surrounding the Chicago Police Department and the sweeping probe of police patterns and practices by the DOJ.

Donna More is one of two candidates looking to unseat Cook County State's Attorney Anita Alvarez in a March Democratic primary. As Alvarez fends off calls for her resignation in the wake of the Laquan McDonald shooting and subsequent criticism over the pace of the investigation, we ask former state and federal prosecutor More what she might have done differently.

Cook County Democratic Party officials have voted to withdraw their support of Circuit Court Clerk Dorothy Brown after reports surfaced that FBI agents seized her cellphone as part of a federal investigation. 

Cook County Democrats will soon decide whether or not to withdraw their support of embattled Cook County Circuit Court Clerk Dorothy Brown, who is reportedly under federal investigation, along with husband Benton Cook, for an alleged sweetheart land deal involving a longtime campaign contributor. 

Living in the Chicago area is about to get even more expensive. Not only is Mayor Rahm Emanuel seeking a record high property tax increase to help shore up police and firefighter pensions. But today Cook County Board President Toni Preckwinkle is asking for a county tax on recreational activities like golfing and cable TV to help plug the county's budget deficit. 

Wednesday is a make-or-break day for candidates running for office in 2016. The powerful Cook County Democratic Organization met for what is their traditional slating session. Which candidates won the coveted endorsement and how does it bode for 2016?

Cook County Board President Toni Preckwinkle won a victory Wednesday after the county board narrowly signed off on her controversial sales tax hike, but there might be some legal and political risks. We’ll talk with the Civic Federation president Laurence Msall and Nick Kachiroubas, an assistant professor at DePaul University’s School of Public Service.

Cook County Commissioners approved Wednesday a 1-percent increase in the county portion of the sales tax, which brings Chicago’s sales tax to 10.25 percent. President Toni Preckwinkle’s proposed penny-on-the-dollar sales tax was approved by a vote of 9-7.