Thousands of "No Kings Day" protests are set to be held throughout the country on Saturday to protest the Trump administration.

The rallies were among hundreds of "No Kings" protests held throughout the United States, timed to coincide with a military parade celebrating the 250th birthday of the U.S. Army in Washington, D.C. Saturday was also Trump's 79th birthday.

That’s part of why George Atkinson, a former high school government teacher, felt compelled to join a protest in downtown Houston on Saturday. The 89-year-old affixed a sign to his walker that read, “The clothes have no emperor! He’s all hat and no cattle!”

The "No Kings" protests were scheduled in Connecticut as early as 9:30 a.m. in Canton and Glastonbury and could last elsewhere until 6 p.m.

The anti-Trump protests in Austin remained peaceful, despite a 'credible threat' that forced a brief evacuation of the Texas Capitol complex.

The No Kings events come after days of protests following raids by U.S. Immigration and Customs Enforcement in Los Angeles, and Trump’s subsequent deployment of thousands of National Guard and U.S. Marines troops to “temporarily protect” ICE and other federal personnel, along with federal property.

An armed man was arrested on Saturday in the area of a "No Kings" rally in West Chester, Pennsylvania, police said.

At least one person was critically injured Saturday in a shooting at a protest against President Donald Trump in Salt Lake City. It came hours after two Democratic lawmakers in Minnesota were shot dead by a gunman.