Border Patrol agents have been responsible for more Chicago-area arrests than ICE in the Trump administration's "Midway Blitz" crackdown, an unprecedented shift that has caused some internal tensions,

A little known border law from the 1950s may be playing a big role in the current surge of controversial immigration actions across Chicago — even though few would consider the city a border town. The big picture: The statute created what's known as the "100-mile zone" where Customs and Border Protection agents conduct warrantless searches of vehicles within a "reasonable distance" of an international border.

Judge Sara Ellis won't yet ban the use of tear gas by federal agents but warned a top official she would be watching.

The briefing follows multiple reports of Immigration and Customs Enforcement activity that prompted several calls to Evanston police and city officials.

Chicago residents say ICE and Customs and Border Protection agents carried out multiple operations across the city on Friday, and in at least one instance deployed tear gas.

U.S. Customs and Border Protection says it requested sweeping restrictions on drone usage within the Chicago area because of a “credible threat.”

Customs and Border Patrol Cmdr. Gregory Bovino was set to face tough questions in a deposition Thursday, in part of an ongoing fight over how federal agents are handling immigration enforcement in Chicago.