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St. Michael the Archangel Catholic Church, 8237 S. South Shore Driv. William J. Brinkmann, 1909 (Credit: Eric Allix Rogers)

Preservation Chicago has released its annual list of Chicago’s most threatened historic buildings – and this year, it includes two return entries and an entire category of buildings that dot Chicago’s neighborhoods.

Mayoral candidates Lori Lightfoot, left, and Toni Preckwinkle give speeches Tuesday, Feb. 26 at their respective election night parties. (Photos by Tyler LaRiviere and Ashlee Rezin / Chicago Sun-Times via AP)

Former federal prosecutor Lori Lightfoot, a political outsider, will be matched up against the ultimate insider, Toni Preckwinkle – a longtime member of the Chicago City Council who now holds the top job in Cook County. 

(Tony Webster / Wikimedia Commons)

The Joliet Police Department says in a statement that the four were found dead shortly after 10:15 p.m. Wednesday after officers responded to a report of a shooting.

Researchers model the wireless sensors on a doll, alongside a traditional monitoring system composed of electrodes and wires. (Courtesy of Northwestern University)

Soft, flexible sensors developed by Northwestern University researchers measure an infant’s vital signs and allow physical bonding between baby and parent.

(Chicago Police Department)

Luis Castejon faces a charge of first-degree murder in the shooting Monday of Emanuel Gallegos, a 17-year-old junior at one of the city’s elite public high schools.

Michael Cohen, center, President Donald Trump's former lawyer, arrives to testify before a closed-door hearing of the House Intelligence Committee accompanied by his lawyer, Michael Monico of Chicago, on Capitol Hill, Thursday, Feb. 28, 2019, in Washington. (AP Photo/Alex Brandon)

President Donald Trump’s former lawyer returned to Capitol Hill on Thursday for hours of closed-door questioning after publicly branding his former boss a racist and a con man.

Richard J. Daley and Eleanor “Sis” Daley vote in the 1946 race for Cook County sheriff. (Chicago Daily News Photo; Courtesy of the Chicago History Museum)

Richard J. Daley’s long climb up the Democratic Party ladder began in the 1930s and was fueled by unfailing loyalty to the party – and an extraordinary series of well-timed deaths.

(LoboStudioHamburg / Pixabay)

Chicago police have spent nearly $1.5 million on a social media monitoring software called Dunami since 2014, records show. The ACLU of Illinois has called on CPD to end its use of the "spying software." 

What is ranked-choice voting? And how could it have impacted Chicago’s Feb. 26 election?

Erin Brockovich’s efforts to expose a utility company's contamination of California groundwater were made famous in a 2000 film bearing her name. She joins us to discuss Chicago’s environmental issues.

Chicago artist Edo

From clothing to digital art to painting, Chicago artist Edo sees color in all forms. “Color is my thing,” he says. “I want it to light up a room.”

Gov. J.B. Pritzker answers questions about Senate Bill 1, a bill to raise the state’s minimum wage to $15 an hour by 2025, after it passed the Illinois Senate on Thursday, Feb. 7, 2019. (Justin L. Fowler / The State Journal-Register via AP)

As Gov. J.B. Pritzker moves full steam ahead on a graduated income tax, he says he’s unfazed by warnings that Illinois’ credit could be downgraded.

Watch the Feb. 28, 2019 full episode of “Chicago Tonight.”

Mayoral candidate Toni Preckwinkle joins us as her campaign goes after the progressive bona fides of her challenger, Lori Lightfoot.