A man who was believed to be part of a peacekeeping team for the “No Kings” protest in Salt Lake City shot at a person who was brandishing a rifle at demonstrators, striking both the rifleman and a bystander who later died at the hospital,

Thousands of anti-Trump protests are erupting across the United States this weekend under the banner of “No Kings” day.

More than 1,500 events are planned throughout the U.S. to send a loud message to President Donald Trump: “In America, we don’t do kings.”

Organizers of the “No Kings” demonstrations said millions had marched in hundreds of events. In Oregon, tens of thousands of people gathered in downtown Portland for two large protests -- one that began in Tom McCall Waterfront Park and the other at the Oregon Convention Center.

Denver police say they believe the vast majority of people participating in the ‘No Kings’ Protest left after the event ended around 4 p.m. FOX31's Alliyah Sims spoke with one demonstrator who said the goal was to peacefully share their message.

"In America, we don't do kings," the No Kings website reads. "They've defied our courts, deported Americans, disappeared people off the streets, attacked our civil rights, and slashed our services. The corruption has gone too. far. [cq] No thrones. No crowns. No kings."

Demonstrators unfurled banners that read, “No Crown for a Clown” and “Trumpster Fire,” as they screamed, “Hey, hey! Ho, ho! Donald Trump has got to go!”

More than 1,500 events were announced throughout the U.S. to send a loud message to President Donald Trump: “In America, we don’t do kings.”

Texas police say there are more than 10,000 people in attendance at the Capitol for Saturday's 'No Kings' protest. Follow for live updates.