More than two dozen of the state’s best tree climbers will face off in challenges this weekend when a little-known event returns to Chicago after a decadeslong hiatus.

The Trump administration fights back against widespread criticism of its slow response to Hurricane Maria, while Chicago’s Puerto Rican community mobilizes to try to send supplies and water to the island.

A big change could be coming to the police accountability apparatus.

A new wrinkle in Chicago’s legal battle with the U.S. Department of Justice.

Watch the Sept. 26, 2017 full episode of "Chicago Tonight."

Meet Clive Stockil, a conservationist being honored in Chicago who is helping Zimbabwe’s rhinos bounce back from the threat of extinction.

Barbara Flynn Currie was elected to the House in 1978. Twenty years later, House Speaker Michael Madigan tapped her to be the House majority leader—the first woman to hold the position. Currie discusses her decision to call it quits.

The fall theater season is in full swing. Chicago Sun-Times theater and dance critic Hedy Weiss shares her recommendations at the Court Theatre, Goodman Theatre, Lyric Opera and more.

Get ready, writers and editors: We take a look inside the newest edition of the Chicago Manual of Style and discuss its most attention-grabbing new rules with Carol Fisher Saller.

Researchers from the University of Chicago and University of Illinois at Chicago will join forces to study the health effects of pollution on local residents, thanks to a $4 million grant from the National Institutes of Health.

Chicago Public Schools principals learned this week that they won’t lose money if enrollment figures following the first two weeks of school were below projections made when budgets were estimated in July.

Gov. Bruce Rauner now has the next 60 days – until late November – to act on a bill that would expand taxpayer-funded abortions in Illinois.

Is the head of a new Chicago police watchdog group about to jump ship just weeks into the job? 

Watch the Sept. 25, 2017 full episode of "Chicago Tonight."

Barbara Gaines, Chicago Shakespeare Theater founder and artistic director, talks about the wild twist on a classic that opens their 31st season.