Some Chicago educators say they have prepared a "sanctuary team" who know what to do in case of a raid. So far, there have been no reported mass deportations in the Chicago area.
In the days since President Donald Trump took office, hundreds of immigrants have already been arrested by U.S. Immigration and Customs Enforcement agents.
At least 1,500 more active duty troops are heading south to take 'complete operational control' of the U.S. border by the end of January - and more will deploy in coming weeks and months.
In its first major enforcement action under the Trump administration, ICE conducted a nationwide operation resulting in over 460 arrests, including in Illinois.