Opponents of President Donald Trump’s administration are set to rally in nearly 2,000 cities and towns this weekend.

The American Civil Liberties Union said over 5 million people participated in protests against the Trump administration on June 14.

Three dozen protesters were arrested Saturday night in Denver on investigation of charges ranging from blocking streets to resisting arrest, according to the police department.

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.

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

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

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.

No Kings” organizers described the events as a “nationwide day of defiance” against President Donald Trump and authoritarianism.

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.

The first of two rallies against the Trump administration in North Carolina’s capital city took place on Capital Boulevard near Triangle Town Center in North Raleigh.

The county's sheriff had made incendiary remarks about police response should any violence occur. But nothing happened.