PHILADELPHIA — Cities large and small were preparing for major demonstrations Saturday across the U.S. against President Donald Trump, as officials urge calm, National Guard troops mobilize and Trump attends a military parade in Washington to mark the Army’s 250th anniversary.

Thousands are marching in Philadelphia to protest the Trump administration today. Our reporters and photographers are at the scene.

Thousands gathered in Philadelphia for the "No Kings" protest, marching to the Art Museum to oppose threats to democracy and immigration enforcement without due process. Despite rain and poor air quality,

And police told crowds to disperse at a rally in downtown Los Angeles after authorities said people had thrown "rocks, bricks, bottles," and "fireworks" at officials. Activists in some areas braved wet weather to raise signs and chant slogans supporting the rights of immigrants and criticizing what they see as Trump's power grab.

The demonstrations follow more than a week of large-scale protests in Los Angeles against Mr. Trump’s immigration crackdown and his decision to deploy the military there. Thousands gathered at Liberty Plaza,

In a city known as the cradle of American democracy, an impassioned, hourslong protest filled the streets for a ‘No Kings Nationwide Day of Defiance.’

Thousands gathered in Daley Plaza and in suburban events in protests timed to coincide with a military parade in Washington celebrating the Army's 250th anniversary and President Donald Trump's 79th birthday.

"No Kings" rallies brought demonstrators together, joining voices across the nation and region to protest what they call a growing threat of authoritarianism in American politics.