Chicago Teachers Union President Karen Lewis underwent emergency surgery today. NBC 5 News Reporter Mary Ann Ahern joins us with the details on the story she broke this afternoon.

A Facebook group entitled “Karen Lewis for Mayor of Chicago” posted an offensive comment Sunday  that brought back reminders from Rahm Emanuel’s first campaign for congressman.

Karen Lewis stops by to discuss her political future and more. 

Preckwinkle is out but who else is in? We discuss with our panel who the likely challengers are that will put up a fight against Rahm Emanuel in the upcoming Chicago mayoral race.

Chicago Teachers Union President Karen Lewis discusses her opposition to Mayor Rahm Emanuel’s re-election, who she would like to see run against him, the union’s proposal for a new tax on financial transactions and much more. 

There may be a painless way to solve pensions without raising property taxes that is sitting right before the mayor's eyes. Paris Schutz breaks it down for us. Read a response from Mayor Emanuel's office. 

Chicago Teachers Union President Karen Lewis says Chicago has to break its addiction to tax-breaks and find ways to generate revenue for our schools. She joins us to talk about the fate of teachers and students under the new-look CPS. Read Lewis's full statement in response to CPS' proposed five-year action plan and read 11 Things About Lewis you may not have known.

Watch CPS CEO Barbara Byrd-Bennett and CTU President Karen Lewis's full testimony from today's school board meeting.

Chicago Teachers Union President Karen Lewis  joins us to discuss the largest school closing in CPS history.

The Chicago Teachers Union promises to launch a political campaign to defeat Mayor Rahm Emanuel. Elizabeth Brackett has the latest.

We spoke with Chicago Teachers Union President Karen Lewis about school safety, closings and more. Read what she had to say.

The Chicago Board of Education plans to close 54 schools, citing a $1 billion deficit and under-enrollment. Critics say this move will disrupt communities and put kids in danger. For both sides of the debate, PBS NewsHour's Jeffrey Brown talks with School Board vice president Jesse Ruiz and Karen Lewis, president of the Chicago Teachers Union.

We have your thoughts about school closures and our interview with Chicago Teachers Union President Karen Lewis when we read some of your viewer feedback.

Chicago Teachers Union President Karen Lewis joins us to talk about impending school closures, and whether race is a factor.

Karen Lewis comments on the end of the teachers' strike.

CPS and CTU officials discuss the state of negotiations on Tuesday evening.