Tens of thousands of demonstrators took to the streets across Southern California on Saturday to voice their concerns over ongoing immigration raids and oppose the policies of President Trump, who they depicted as an aspiring monarch.

Federal officers clad in tactical gear deployed smoke, tear gas, flash grenades and other projectiles as the restive crowd of demonstrators hurled water bottles and fireworks.

Across the country, an estimated 5 million protesters took part in more than 2,000 protests, according to the American Civil Liberties Union, a co-sponsor of the nationwide protest. In the Bay Area, more than 50 protests were planned stretching south from Gilroy north to Santa Rosa.

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Army intelligence analysts are monitoring civilian-made ICE tracking tools, treating them as potential threats, as immigration protests spread nationwide.

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

The estimated 70,000+ peaceful demonstrators had various grievances with the Trump administration, but immigration policy was the prevailing theme.

The "No Kings" protest in Salt Lake City was struck by violence when a man allegedly brandished a rifle near the crowd.

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.

The sounds of one of Chicago’s largest protests in recent memory reverberated throughout downtown Saturday, as tens of thousands gathered in a united admonishment of President Trump.