Tens of thousands of Americans joined "No Kings" protests across the United States against the Trump administration.

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.

Follow live updates as the military parade in Washington, D.C., kicks off on Trump's birthday. 'No Kings' protests by opponents are planned across the country today.

Demonstrators gathered at Civic League Park in San Angelo as part of nationwide "No Kings" protests on Saturday.

The Houston demonstration is one of several planned in the region throughout the day and is expected to draw thousands of protesters.

At least 1,500 "No Kings" protests nationwide were being held Saturday, the same day as President Donald Trump's large-scale military parade in Washington, D.C., to celebrate the U.S. Army and his 79th birthday.