Cook County Board Update Correspondent Christian Farr has the latest on the saga of the Cook County Board, now that President Stroger has submitted a signed letter of resignation, clearing the way for the Cook County Democrats to choose a new candidate.

Live from Grant Park We'll go to Grant Park to look in on the wet holiday festivities. Our Christian Farr is standing by live with the latest. Cook County Board Update Todd Stroger's potential ascension to Cook County Board President isn't going as smoothly as planned. Both Congressman Danny Davis and County Commissioner Bobbie Steele have voiced their desire for the post. Davis and Steele join us tonight.

Chicago Tonight: The Week in Review John Stroger anoints his son as his replacement, Senator Barack Obama opines on mixing religion and politics, a proposal to ban trans fats in the city council, the Taste of Chicago opens, Rev. Meeks demands state probe of poor performing teachers, Northwestern University football coach Randy Walker dies suddenly, and the Cubs and Sox clash at the Crosstown Classic. Guests:

News Analysis with Carol Marin John Stroger plans to step aside as Cook County Board President and pave the way for his son, Todd Stroger, to take his place. This news comes more than three months since he suffered a stroke and has raised considerable controversy. Carol Marin and her panel of commissioners will take a look at where things might go from here. Guests: Commissioners Tony Peraica, Forrest Claypool and Earlean Collins

News Analysis with Elizabeth Brackett Although people often joke about having so-called "senior moments," a new Chicago study says they actually could be early signs of Alzheimer's Disease. Elizabeth Brackett and her panel will take up this new development.

Jay Mariotti White Sox manager, Ozzie Guillen, made national headlines last week when he used a gay slur in referring to Chicago Sun-Times sports columnist Jay Mariotti. The outburst drew Guillen a fine from major league baseball and a trip to sensitivity training. Now, Mariotti says the slur is the latest in a long series of abuses he's endured from the Sox organization. And he says his own employer, The Sun-Times, has done nothing over the years to back him up. Phil Talks to Jay Mariotti tonight.

Chicago Tonight: The Week in Review Ozzie Guillen in a war of words with Sun-Times columnist Jay Mariotti, winter Midway crash scrutinized, secret clout list unveiled at city corruption trial, gangs migrating to the suburbs, Joliet leading the way in suburban growth, and Cubs hurler Kerry Wood may be done for the season. Guests:

Olympic Hopeful Rich Samuels tells us Mayor Daley's latest efforts to bring the 2016 Olympics to Chicago.

Gang Arrests A major drug raid at the CHA's Dearborn Homes led to the arrests of 30 alleged members of a street gang suspected of trafficking in a deadly form of heroin. Rich Samuels has details of what investigators are calling "Operation Snakebite."

Cook County Board Rich Samuels reports on what the Cook County Board decided about President John Stroger's political future. News Analysis with Elizabeth Brackett Prosecutors unveil a 5,700-name clout list at the Robert Sorich corruption trial. Elizabeth Brackett and her panel weigh in on the latest developments.

News Analysis with Carol Marin A new report from the Chicago Crime Commission reveals the inner workings of Chicago gangs. Carol Marin and her panel, including a former gang member, look at what the study reveals.

Emerald Ash Borer While it may look harmless, the Emerald Ash Borer has the potential to wipe out 20% of Chicago's trees. An expert will tell us what it is and what can be done to save the ash trees in Illinois. For more information on the Emerald Ash Borer, click here. If you suspect infestation in your area, contact one of the following:

World Cup Fever Our Elizabeth Brackett explores the growing fan base for World Cup soccer. News Analysis with Carol Marin There's turmoil at the Tribune Company over a $2 billion stock buy-back plan that's riling key investors. Carol Marin and her panel weigh in on the future of the media giant.

Chicago Tonight is abbreviated tonight due to pledge. Cook County Board Meeting Rich Samuels has the latest from the today's meeting of the Cook County Board of Commissioners. News Analysis with Elizabeth Brackett Elizabeth Brackett sits down for a conversation with Eileen Collins, America's first female shuttle commander.

Chicago Tonight is abbreviated tonight due to pledge. Water Limits Rich Samuels tells us about projected water shortages in Illinois, and what needs to be done about it. News Analysis with Carol Marin Author John Updike is here. He'll talk with Carol Marin about his latest novel "Terrorist" and how America is being shaped by post-9/11 forces. Critic for a Day We'll review the Chicago-made movie, "The Break-Up" with our critic for a day, PR maven, Margie Korshak.

Deadly Dam We'll tell you about a controversial solution to a deadly problem on the Fox River. Rich Samuels has the latest on the state's plans to rebuild a dam that claimed three more lives over the Memorial Day weekend. News Analysis with Eddie Arruza Chicago aldermen make nearly $100,000 a year and some of them say they deserve a lot more. Eddie Arruza talks to two aldermen with opposing views. Guests: Ald. Bernie Stone, Ald. Helen Shiller, Jay Stewart