Attorneys for the city of Chicago on Monday hoped to convince a federal judge that plans by the U.S. Department of Justice to withhold federal grant money over immigration enforcement is unconstitutional.

Watch the Sept. 11, 2017 full episode of "Chicago Tonight."

Hurricane Irma leaves behind storm surge flooding, widespread power outages and serious damage to property. We get an update from Florida.

Mayor Rahm Emanuel is leading a huge delegation in Israel on Monday evening. He tells us why.

What part – if any – does global warming play in the intensity of hurricanes? And what infrastructure failures contribute to the utter loss and destruction during extreme weather?

A great joke can make you laugh, but can it also help you face life’s mysteries? A new book makes the case that jokes not only delight us, but help us approach difficult subject matter.

An anonymous donation will be used to treat child abuse, mental health issues and the direct and indirect effects of violence on Chicago’s youth.

Just days after Gov. Bruce Rauner signed a new education funding formula into law, his handpicked education chief announced her departure.

State regulators signed off Monday on an energy savings plan that consumer advocates say could cost downstate residents nearly 30 percent in savings on utility bills.

Luigi, a 1-year-old Hoffman’s two-toed sloth, is getting settled alongside his new primate neighbors in a mixed-species exhibit.

Choreographer John Neumeier is in the sixth decade of a career that’s still going strong, and his latest project marks an unprecedented Chicago collaboration.

Grant funding will be used to restore wetlands and improve water flow at a 278-acre park that opened last year at a former industrial site on Chicago’s Southeast Side.

A week after announcing a record-high graduation rate among students last year, Chicago Public Schools said Monday that more of those students are ready for college than ever before.

The soda tax repeal vote approaches as Toni Preckwinkle faces an ad blitz and sagging polls. School starts with undocumented students fearful. And the Bears kick off the season. 

A Kansas company that last week won approval of Illinois’ first horizontal fracking permit has been cited with more than two dozen violations in multiple states, records show.