Stories by Matt Masterson

Facebook’s “disregard and misuse” of users’ personal data allowed a foreign firm to profile 50 million voters without their consent prior to the 2016 election, and according to a new lawsuit, it may have violated Illinois state law.

A first-of-its-kind study from the Chicago Department of Public Health provides a population estimate of the city’s LGBT community and a snapshot of the health issues and inequities it faces.

The 18th Police District has a new commander more than a month after Paul Bauer was gunned down outside the Thompson Center.

The human voice is a remarkable instrument. And when the 115 heavenly souls of the Chicago Symphony Chorus gather on stage with the musicians of the Chicago Symphony Orchestra, something extraordinary happens.

The grocery store chain released more details this week about its plans to phase out a practice that animal welfare advocates consider inhumane. 

Pritzker wins big. Rauner squeaks by in what could be the costliest race for governor ever. Garry McCarthy announces and Rahm Emanuel pounces. And the Ramblers ramble on.

Eddie Arruza and guests discuss the 3rd Congressional District candidate described by his party as a neo-Nazi.

Students calling for an end to gun violence will lead hundreds of marches across the country this weekend. Meet a Chicago teen invited to speak at the national March For Our Lives event in Washington, D.C.

As has become the norm in the Loyola Rambler’s heart-pounding NCAA Tournament run, it came down to the final seconds on Thursday against the Nevada Wolf Pack.

Your thoughts about the potential ramifications of a Chinese company drawing 7 million gallons of water a day out of Lake Michigan.

Garry McCarthy is officially in. “It’s time for new leadership in City Hall that’ll fix our problems and pull us together,” the former Chicago Police superintendent said in a video announcing his bid for Chicago mayor.

Watch the March 22, 2018 full episode of "Chicago Tonight."

Health and Human Services Deputy Secretary Eric Hargan discusses his agency’s role in combating the opioid crisis.   

China faces steep tariffs for allegedly stealing U.S. intellectual property. Is a trade war in the offing?

One thing we can all count on in Chicago is the late winter and early spring pothole season. We catch up with some city crews trying to make life a little less bumpy.

Cook County Sheriff Tom Dart drew national attention when he appointed a psychologist to be the jail’s executive director. After almost three years on the job, Nneka Jones Tapia is moving on. 

Geoffrey Baer travels to France to meet this year’s winners of the Driehaus Prize for architecture.

Alaina Hampton, a former political and legislative staffer in House Speaker Michael Madigan’s political organization, is taking her ex-boss to federal court.

The Chicago Public Schools K-8 chess championship is this weekend. We visit two schools whose students hope to capture the prize.

Of the top 10 most populous cities in the country, the Chicago metro area was the only one to see a decline. Chicago demographer Rob Paral says a “complex stew” of factors is behind the drop.

The yet-to-be-named chick is healthy and being hand-reared by animal care staff, the zoo said this week.

With the race for governor winnowed down, Democrat J.B. Pritzker and Republican Gov. Bruce Rauner are wasting no time in going after one another. 

Watch the March 21, 2018 full episode of "Chicago Tonight."

Spring blooms, tattoo ink, a march against gun violence and a chef-driven food fest usher in the weekend. Here are 10 things to do in and around Chicago.

Meet the primary winners set to take on suburban incumbent U.S. Reps. Peter Roskam and Brad Schneider in the November general election.

A big-picture look at what the primary results say about where November’s election might be headed.