Sparks fly as the candidates for Illinois governor go for the political jugular. Where is the study into the fairness of the Cook County tax system? And a former CPS CEO appears to be eyeing Mayor Rahm Emanuel’s job. 

U.S. Attorney General Jeff Sessions threatens Chicago and other sanctuary cities. Meanwhile, Illinois politicians are front and center on the immigration debate. And Janice Jackson officially becomes CPS’s CEO. Eddie Arruza and guests discuss these stories and more.

A special hourlong presentation celebrates Joel Weisman’s 40th anniversary as host – and his final appearance at the helm of the show he helped create. “For four decades, Fridays have always been my favorite day of the week,” he says.

Is Oprah serious about a run for the White House? Will Garry McCarthy run for mayor? Karen Lewis laughs at a draft of her obit. And the Bears have a new head coach.  

Democratic candidate for governor Chris Kennedy slams Mayor Rahm Emanuel for overseeing a “strategic gentrification plan” designed to “push people of color out of the city.” This story and more with Eddie Arruza and guests.

From City Hall to the halls of Congress, 2017 has been a transformative year. Chicago Tonight recaps the top stories of the year.

Mayor Rahm Emanuel blasts President Donald Trump on “The Late Show with Stephen Colbert.” Cook County Assessor Joe Berrios faces a lawsuit charging racial discrimination in the property tax assessment system. And Cubs announcer Pat Hughes reveals a health scare.

The Chicago Public Schools watchdog recommends firing CPS CEO Forrest Claypool. Gov. Bruce Rauner says he’s not the one “in charge” of Illinois. And losing streaks persist for the Bulls and Hawks.

U.S. Rep. Luis Gutierrez drops a bombshell announcement after 13 terms in Congress. Cook County’s soda tax is dead, but political ramifications linger. Elon Musk is bidding on the O’Hare express train project. And the Bears lose patience with coach John Fox. 

A mass exoneration in Cook County clears 15 men. Proposed layoffs in the wake of the failed soda tax. And controversy over playmaking decisions by Bears coach John Fox.

Sexual harassment takes the focus in Springfield and City Council. Aldermen approve a new police training center on the West Side. Sears plans to shutter more stores. And the Bears take on the weakened Packers. 

U.S. Rep. Luis Gutierrez says President Trump is “unfit to be president.” Security is stepped up in the wake of a fatal truck attack in New York City. Sex abuse allegations shake up Springfield. And Rod Blagojevich appeals to the Supreme Court.

Gov. Bruce Rauner launches his re-election bid. Cook County Board President Toni Preckwinkle demands 10-percent cuts. And in Springfield, a “bump stock” bill is defeated and sexual harassment allegations emerge.