The event was one of more than 2,000 “No Kings” rallies held across the country on Saturday, protesting what organizers call “authoritarianism, billionaire-first politics, and the militarization of our democracy.

LAPD said law enforcement arrested 38 people following the "No Kings" protests in downtown Saturday afternoon.

In Los Angeles, 38 people were arrested downtown on Saturday night, police said Sunday. In Huntington Beach, police arrested a convicted felon they said had a loaded handgun.

The protests were timed to Flag Day and Trump's 79th birthday as he held a military-style parade to celebrate the Army's 250th anniversary in Washington, D.C., featuring tanks, so

The LAPD said on social media that the people in the crowd were throwing "rocks, bricks, bottles and other objects" while they were near the federal building.

“The most threatening sound to an oligarch is laughter.”

No Kings is a nationwide protest organized in response to President Trump and his immigration policies. Here are live updates from Florida's rallies.

NBC News correspondent David Noriega reports on the ground in Los Angeles, CA as citizens march in the 'No Kings' protests. "There are a lot of people out here who are the children of immigrants... They feel personally that a lot is at stake for them with these protests,