The EPA says the source of an Oct. 26 oil spill remains unknown, but cleanup efforts continue this week along the 1.5-mile stretch of the south fork of the South Branch of the Chicago River.

Lawmakers who signed an open letter describing a culture of sexual harassment and misconduct in Springfield discuss the problem.

On the 500th anniversary of Martin Luther’s dramatic challenge to the Catholic Church, two local exhibitions reveal the astonishing impact of the Reformation.

At a book signing in Winnetka, the former Democratic presidential candidate was asked for her response to Robert Mueller’s investigation. “I have a great chapter about Russia in here,” she said, holding up her book.

High school students who take advanced classes are more likely to enroll in college. But Chicago Public Schools says that not enough minority students are getting access to this more challenging coursework.

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

There are more soggy days ahead. Find out how you can help ease the burden on the Chicago River and reduce the risk of flooding.

Blistering attacks against President Donald Trump coming from members of his own party. Local Republicans give us their take on the turmoil dividing Washington.

Meet Dr. Helene Gayle, the new CEO of the Chicago Community Trust, and find out what the future holds for this 102-year-old philanthropic organization.   

Youth football seems to be taking a hit. We speak with a Daily Herald investigative reporter about steep declines in high school football participation.

While some gun rights advocates oppose any prohibition on “bump stocks,” others say they’re open to a ban, but that this particular proposal went too far, and was riddled with technical flaws.

The public exposure of a capitol culture rife with groping, lewd jokes and other forms of sexual harassment has legislation intended to help eliminate the behavior on the fast track.

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