We meet an elusive portrait artist who painted Hollywood stars and a U.S. President, and find out how a giant collection of her artwork ended up in a suburb of Chicago.

Chicago teachers, parents and students march for a third day to protest impending school closures. Elizabeth Brackett has the latest.

The Chicago Public School Board will vote on school closings on Wednesday. Carol Marin and her guests have the latest.

Medical marijuana, pensions, gambling and guns. What will the governor do about these hot-button issues as lawmakers enter the final stretch of the spring session? Paris Schutz has more.

With a medical marijuana bill on the governor's desk, we hear more about what diseases it can treat and the chemistry behind how it works. 

We look at a group of artists enlisted by the military to trick the enemy during World War II.

We dig into a deeply rooted exhibition that showcases artists who found inspiration in the common experience of migration.

We hear what you had to say about the mayor's plans to expand McCormick Place and overhaul Navy Pier when we read some of our viewer feed

The Illinois Senate approved a medical marijuana bill by 35-21. See how Senate members voted in our interactive graphic.

Joel Weisman and his panel of journalists discuss the week's top headlines.

Joel Weisman and his panel of journalists discuss a new Chicago Tribune/WGN-TV poll showing waning support for a Chicago casino, and the potential impact of slot machines at Chicago airports.

Close encounters with stingrays, graffiti-turned-fine art, and Yo-Yo Ma in a special event at the Chicago Symphony Orchestra; Chicago Tonight knows what's going on this weekend.

The mayor rolls out major plans to expand McCormick Place and overhaul Navy Pier. But, elements of the plan, including a proposed new DePaul arena, are drawing criticism. Paris Schutz has the latest.

The mayor unveils grand plans for Navy Pier and McCormick Place. We talk with the heads of Navy Pier and the Metropolitan Pier and Exposition Authority about the proposal.

Cellist Yo-Yo Ma joins us for a solo performance, and tells us about his latest project with the Chicago Symphony Orchestra.