Watch CBS News
The Chicago Teachers Union took issue with class sizes Wednesday, while Chicago Public Schools officials said they are working to combat the problem – as the days count down to a possible teachers' strike.
In a statement Tuesday night, Lightfoot said that the union's contract with CPS is "not the appropriate place for the city to legislate its affordable housing policy."
With nine days until a possible teacher strike, both the city and the Chicago Teachers' Union are blaming one another for the lack of progress.
Despite the penalties, parents are still reporting several busing issues so far this year.
Some people in Norwood Park are not happy about a preschool Chicago Public Schools is planning to build in the area.
"CTU leadership is not exhibiting the sense of urgency needed to move these negotiations forward in a substantive way to avoid a strike," Mayor Lightfoot said.
With the threat of a strike, some members of the Chicago Teachers Union are making their push for more pay public.
"There's zero plan to make up any days that might be lost as a result of a work stoppage," Mayor Lori Lightfoot said of a possible teachers' strike on Oct. 17.
Mayor Lori Lightfoot and Chicago Public Schools Chief Executive Officer Janice K. Jackson said Wednesday that city schools will be kept buildings open in the event of a teachers' strike.
"They throw this kid out on the street ... and they leave him there," attorney Dan Herbert said.
Staff members from Chicago Public Schools and the Chicago Park District hand-delivered strike notices to Mayor Lori Lightfoot's office at City Hall Tuesday.
Union leaders and CPS officials were meeting at CTU headquarters in the West Town neighborhood, hoping to agree to a contract both sides can support.
A Chicago Public Schools parent could not understand why her emails were not getting to her son's case manager.
Chicago teachers are voting on whether to authorize a strike next month as contract negotiations continue in the nation's third-largest school district.
A Chicago Public Schools security guard was forced to resign back in 2009 after an investigation found that he sexually exploited a student. But he wasn't charged for 10 years after that.
Cedric Nolen resigned as principal of Colin Powell Middle School last week, and students in Matteson said he shouldn't have been hired in the first place.
The Chicago Public Schools have "inexcusably failed" to protect students. That's the finding from a federal investigation looking at case after case of sex assault and abuse.
Chicago Public Schools "inexcusably failed, for quite some time" to protect students who were sexually harrassed or abused by CPS teachers and employees, federal education officials said Thursday.
Former Parkside Elementary Principal Cedric Nolen was the subject of an investigation that found evidence supporting a finding of sexual misconduct.
The Morning Insiders stay on the case of taxpayer money used to pay Chicago Public Schools employees on suspension while under investigation.
A CBS 2 inquiry sparked by an investigation into spending on suspended Chicago Public School employees led to some surprising statistics from Illinois' Department of Children and Family Services.
Chicago Public Schools administrators say they're working to get school buses arriving on time after a CBS 2 report on parents frustrated by delays and no-shows during the first week of school.
The excitement to catch the school bus is quickly becoming a nightmare for hundreds of Chicago Public Schools students.
Chicago Teachers Union delegates voted unanimously Wednesday to schedule a date for a strike authorization vote.
Hundreds of families in Englewood are celebrating the opening of a new $85 million high school, but to make way for that school, the neighborhood had to lose four others.
Chicago police said an eastbound Kia on 72nd Street hit a northbound Chrysler on S. South Shore Drive. The Chrysler then collided with a CTA bus.
The Chicago Office of Emergency Management and Communications is preparing to launch a major software update to the city's 911 dispatch system, but some are calling to slow the process down.
CBS Skywatch was over Douglass Park on Monday to see what was left after heavy rain led to a soggy event.
Mark Leeman told an Indiana appeals panel that investigators were so determined to convict Allen that they used statements he made while mentally deteriorating behind bars, and kept out of trial a witness sketch that looked nothing like him.
The online Illinois Lottery player purchased the winning Lucky Day Lotto ticket worth $550,000 over the weekend.
CNN was set to provide pool coverage on Monday and accompany President Trump on a trip to New York City, but there will not be a network TV pool team traveling with him.
Illinois Gov. JB Pritzker revealed to "CBS Mornings" that for the last two years he has been using a GLP-1 medication to lose weight.
The three news organizations, which were banned from White House grounds by President Trump, are arguing that the ban is unconstitutional.
President Trump said that he has agreed to convert plans for a massive triumphal arch into a "top grade Military Complex," equipped with snipers and drone storage.
President Trump said Friday that three outlets would be banned from the White House, "effective immediately."
Fuel prices continue to climb across the country, and that has U.S. Sen. Dick Durbin (D-Illinois) pointing the finger at President Trump.
Nicor customers will get a break on their bills this fall after Illinois Attorney General Kwame Roul reached an agreement with the utility to cut $140 million from its requested rate hike.
Drivers in Chicago and beyond were paying the highest gas prices ever recorded for the Labor Day holiday as millions of Americans were making their way home on Monday.
Around 115 million domestic and international tourists visited Illinois last year, pushing visitor spending past $50 billion for the first time and generating more than $88 billion in total economic impact.
Illinois Attorney General Kwame Raoul filed a lawsuit Thursday against ABC Plumbing, Heating, Cooling & Electric Inc., alleging deceptive business practices.
Nearly half of Americans with medical debt owe at least $2,000, forcing them to make tough choices, new research shows.
A judge on Tuesday was expected to place two shuttered Chicago-area safety-net hospitals into receivership.
Cardinal Blase Cupich and a group of Catholic nuns have joined a federal lawsuit challenging Illinois' Medical Aid in Dying law, which is set to take effect in just over a week.
Flies have been everywhere this summer in the Chicago area, and some of them bite. But why is this happening?
Prime Healthcare is drawing criticism after announcing it will stop obstetrics services at three Chicago-area hospitals.
The future of Rate Field was back in the spotlight on Wednesday.
Plans for a new Chicago White Sox stadium in the South Loop have residents near the existing ballpark in Bridgeport concerned, not just because the team might be leaving, but also what might be coming nearby.
A new report from the University of Illinois Chicago said federal immigration enforcement led to $1.26 billion in unspent money at retail establishments and restaurants in Cook County.
Around 115 million domestic and international tourists visited Illinois last year, pushing visitor spending past $50 billion for the first time and generating more than $88 billion in total economic impact.
A new Whole Foods Market is coming to Chicago's Old Town neighborhood.
Presley Gerber, the son of Cindy Crawford and Rande Gerber, has died at 27, a family spokesperson has confirmed.
Duncan Sheik died on Thursday night, his family said.
Aaron Rowe, Beoga, Lukas Graham and Finneas all released statements Tuesday on Instagram saying they were withdrawing from Ed Sheeran's tour.
Performer Macklemore is being dropped from Ed Sheeran's Loop tour after making on-stage statements that some found controversial.
Dubbed the "Designer to the Stars," Bob Mackie won nine Emmy Awards, a Tony Award and was nominated for three Oscars.
Thousands of workers at dozens of downtown Chicago hotels have voted to authorize a strike, which their union said would be the largest in the city's history.
The Chicago Office of Emergency Management and Communications is preparing to launch a major software update to the city's 911 dispatch system, but some are calling to slow the process down.
Before the event, organizers said preventative measures were taken, including bringing in 36,000 square feet of landscape fabric, mulch and extra protection beneath the stages.
Chief meteorologist Albert Ramon has the latest First Alert Weather forecast.
A $250 million class action settlement against Apple is now accepting claims, with eligible iPhone 6 and iPhone 15 owners able to receive $25 per device.
Johnson says Williams "will likely miss some time," after injuring his hamstring in Sunday's 9-3 loss to the Minnesota Vikings.
Police in Evanston said they are investigating after federal agents allegedly tried to arrest the wrong man this past weekend.
Chicago police said an eastbound Kia on 72nd Street hit a northbound Chrysler on S. South Shore Drive. The Chrysler then collided with a CTA bus.
The Chicago Office of Emergency Management and Communications is preparing to launch a major software update to the city's 911 dispatch system, but some are calling to slow the process down.
Illinois Gov. JB Pritzker revealed to "CBS Mornings" that for the last two years he has been using a GLP-1 medication to lose weight.
The village of Grayslake is touting a new massive data center, but neighbors say they weren't given an opportunity to make their voices heard before the project was approved.
A Cicero woman is suing Uber and a driver after the driver allegedly sexually assaulted her. She and her boyfriend said Uber hired him despite the driver having a criminal background.
Both hospitals were supposed to be placed in receivership, but after five hours of closed-door negotiations on Tuesday, it is still unclear what the future holds for both hospitals.
Chicago police crime data show 255 reported crimes in the last two years on the two blocks where the former Hard Rock and Rainforest cafés sit vacant. Neighbors have been calling the city about the alley between them for six years.
A three-year effort by the Cook County Sheriff's Office to help bring down crime on the Magnificent Mile in downtown Chicago appears to be working.
Chicago Bears head coach Ben Johnson says quarterback Caleb Williams "will likely miss some time," but is considered "week to week" after injuring his hamstring in Sunday's 9-3 loss to the Minnesota Vikings.
Sam Antonacci had a two-run double in a three-run fourth inning and the Chicago White Sox kept pace in the AL Central and eliminated the Detroit Tigers from playoff contention with a rain-soaked victory Sunday.
For the fans, the focus right now is on how Williams and the rest of the team perform on the field. Some are already dreaming of a Super Bowl appearance.
Chicago (87-69) reduced its magic number to one and could wrap up a berth if the Diamondbacks lose to the Yankees later Sunday.
Williams departed with a right hamstring injury midway through the fourth quarter.
A man was found shot and killed Monday morning in Chicago's West Pullman neighborhood.
Chicago police were searching Monday morning for the gunmen who robbed multiple women and stole their jewelry in Chicago's Lincoln Park neighborhood.
Burglars smashed an ATM at a gas station minimart in Chicago's West Town community early Monday, but failed to get any money, an employee said.
Thieves crashed a vehicle into a convenience store on Chicago's Near North Side early Monday and stole the ATM.
Vandals smashed out the windows of the Haymarket Pub & Brewery in Chicago's West Loop early Monday.
