A behind-the-scenes look at what some think is the second most powerful position in government: White House chief of staff.

Experts in Chicago are working to save one of the world’s most endangered birds. 

When will Chicago Public Schools hold its last day of class? There could be clarity next week, when a Cook County judge rules on a pair of motions in the district’s ongoing suit against Gov. Bruce Rauner.

Dan O’Brien has embarked on what he calls his “Lenten architectural pilgrimage” for about 10 years. “The artistic effort that was put into designing these spaces ... were all meant to tell a story,” he says.

Lawmakers from both sides of the aisle weigh in on the latest developments in Springfield.

Since her retirement from the ring a couple of years ago, World Wresting Entertainment champion April Jeanette “AJ” Mendez Brooks has been working on another story line – for a new book.

Pinball machines and Ed Paschke paintings go side by side as a suburban museum becomes an artful arcade.

Inspired by a mother’s concern for her son, new disability awareness cards outline behaviors exhibited by people with disabilities in order to better inform police and first responders.

In 2015, Chicago air pollution reached elevated levels for a total of 151 days, a new report shows, increasing the risk of premature death, asthma attacks and other negative health effects for city residents.

The body of 19-year-old Mohammed Ramzan, a member of the Northwestern University men’s crew team, has been recovered from the North Shore Channel in Lincolnwood. Authorities say he fell into the water early Monday morning during a rowing practice.

After a hyper-partisan confirmation process and a change to the filibuster rule in the Senate, Judge Neil Gorsuch was sworn in Monday by Justice Anthony Kennedy – the judge for whom he once served as a clerk.

An aviation security officer is put on leave after a passenger is dragged from an overbooked United Airlines flight at O’Hare.

It is a new and disturbing mark against the city of Chicago: Early Monday morning a local judge was shot and killed.

The Cubs unveil the new Park at Wrigley as the team plays at home for the first time as World Series Champs.

Watch the April 10, 2017 full episode of "Chicago Tonight."