From humble beginnings in Massillon, Ohio, to a high-powered federal prosecutor. We bring you an in-depth profile of mayoral candidate Lori Lightfoot.

As the April 2 runoff eletion nears, we take an in-depth look at Toni Preckwinkle’s path from high school history teacher to political power player.

On April 2, mayoral contenders Lori Lightfoot and Toni Preckwinkle square off in Chicago’s runoff election. WTTW News brings you in-depth profiles of mayoral candidates Lori Lightfoot and Toni Preckwinkle.

Illinois Gov. J.B. Pritzker, then Democratic candidate for governor, fields questions from high school students during a special episode of “Chicago Tonight” on Oct. 8, 2018.

From a childhood marked by privilege and tragedy to a life of business success and philanthropy, we bring you an original, in-depth look at the life of new Illinois Gov. J.B. Pritzker.

Premiering Friday, the show’s fourth season includes stories about interesting people in the city and their talents, passions and projects. Here’s a preview of the season.

Firefighters at the scene of the fire at Our Lady of the Angels on Dec. 1, 1958. (Photo of image courtesy Chicago History Museum)

It’s been 60 years since a fire at Our Lady of the Angels school killed 92 students and three nuns. We revisit the WTTW documentary about that tragedy, “Angels Too Soon.”

J.B. Pritzker wins the Democratic nomination for Illinois governor in the primary election on March 20, 2018. (Chicago Tonight)

From a childhood marked by privilege and tragedy to a life of business success and philanthropy, we bring you an original, in-depth look at the life of Democratic gubernatorial candidate J.B. Pritzker.

Bruce Rauner is sworn in as governor of Illinois on Jan. 12, 2015.

Those who know Gov. Bruce Rauner best describe him as stubborn – and smart. An intimate look at what shaped Rauner, and what that’s meant for Illinois as he tries for a second term.

From TV commercials to a legendary South Side art center, a new four-part series explores the creative movements, people and institutions of Chicago over the last 125 years.

An image from the series “America to Me.” (Photo: Kartemquin Films)

A conversation with “Hoop Dreams” director Steve James, who tackles an ambitious series about racial disparity in a Chicago-area high school.

Filmmaker Bing Liu appears on “Chicago Tonight.”

A new film looks at skateboarding as an escape from violence and boredom for three friends in Rockford, Illinois. We speak with director Bing Liu.

Ping Tom Memorial Park at the Chicago River (Courtesy Metropolitan Planning Council)

From Civil War memorials to reversing the Chicago River, Geoffrey Baer tells us about the new season of the WTTW documentary series, “10 That Changed America.”

Nate Claus, second from left (© Mercy Ships)

A Chicago-area native talks about efforts led by a hospital ship to provide free surgeries to patients in West Africa and Central Africa.

When state Sen. Barack Obama decided to run for U.S. Senate, Elizabeth Brackett produced one of the first television documentaries about his life story.

Grace Lombardo (Couresty of "Grace")

Grace Lombardo never thought she’d get a tattoo, but then she got breast cancer. Her story of survival and recovery is told in a new documentary.

A still image from the documentary “Architects Marc and Nada Breitman: Talk of the Town.”

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