Meet the local man who's a certified Lego professional with a brand new exhibit at the Museum of Science and Industry.

Last week's primary election saw several firsts, including same-day voter registration and record-breaking early voting. Cook County Clerk David Orr discusses what it means for the future.

The Illinois Supreme Court dealt Mayor Rahm Emanuel a major setback Thursday in his efforts of saving two of the city’s four public employee pension funds, which city officials say could go broke within the next 15 years.

A new book by Natalie Moore about the South Side blends personal history with investigative reporting to tell the story of a segregated city and misunderstood neighborhoods.

Activists want a date when the 88-year-old Waukegan coal-fired power plant will begin a transition to cleaner power. But NRG Energy says it's poured millions into pollution controls for the plant and has no plans to close.

President Barack Obama addressed the Cuban people early Tuesday during his historic trip, saying, “I have come here to bury the last remnant of the Cold War.”

In 1958 a Navy sailor from Chicago was briefly onshore in Cuba while the revolution was underway. The sailor, named George Klauba, became first a tattoo artist and then a painter. For years now, he has focused his artistic energy on remembering a moment in history and putting his dreamlike impressions on canvas.

Efforts to derail Donald Trump's momentum heat up within the GOP as voters in Arizona and Utah decide who to support in Tuesday's primaries.

Rising rates of addiction to heroin and prescription drugs have been making headlines across the country. Find out what the latest science is telling us about the nature of addiction.

Three hundred workers at Chicago's Nabisco bakery faced layoffs on Monday, with more cuts looming. We take a look at how the neighborhood is coping – and the future of manufacturing in Chicago.

Watch the March 17, 2016 full episode of "Chicago Tonight."

Kim Foxx easily defeated incumbent Cook County State's Attorney Anita Alvarez on Tuesday night with 58 percent of the vote. “I knew from my conversations from people throughout the county that there was discontent, that there was a real consensus of a need for change,” Foxx said.

Watch the March 16, 2016 full episode of "Chicago Tonight."