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.

Photos from the “No Kings” protest in Chicago on Saturday as part of an anti-Donald Trump rally on the same day as his military parade in Washington, D.C., for his birthday.

The Chicago Teachers Union will be joining the "No Kings" march in downtown Chicago on Saturday, June 14, according to the union's website. The march is scheduled for the same day a massive military parade is set to take to the streets of Washington in an elaborate showcase of troops, tanks, weapons and aircraft.

The march became a Leftistpalooza for a variety of movements looking to attract new members (or at least sell a few newspapers).

Opponents to Trump want their nationwide protests that day to be an even bigger one. Progressive groups including the American Civil Liberties Union, American Federation of Teachers, Planned Parenthood and Sen.

The largely peaceful protests during the "No Kings Day" demonstration in downtown Los Angeles took an intense turn in the afternoon. Police ordered the crowd to disperse at about 4:15 p.m. PDT near Alameda Street and Temple Avenue, according to the Los Angeles Police Department's Central Division.

Organizers are calling for Americans to attend demonstrations across the country to protest President Trump on his 79th birthday.