A crowd-size expert from the U.K. estimates that between 10,000 to 15,000 people attended Saturday's protest in downtown Chicago. But some estimates say 75,000 people gathered downtown.

Protesters are expected to gather in the Chicago area and the suburbs as part of a nationwide movement called "No Kings."

The ‘No Kings’ protest rally in Elgin Saturday drew a huge crowd to Kimball Street armed with signs bearing messages like, “Rejecting Kings since 1776,” and chanting in opposition to

A huge and peaceful crowed turned out for the "No Kings" rally, shutting down much of the Loop as part of a nationwide protest movement to denounce the Trump administration.

The demonstrations follow more than a week of large-scale protests in Los Angeles against Mr. Trump’s immigration crackdown and his decision to deploy the military there. Note: This map shows protests that have been confirmed and is not comprehensive.