PHILADELPHIA >> Demonstrators crowded into streets, parks and plazas across the U.S. on Saturday to protest President Donald Trump, marching through downtowns and blaring anti-authoritarian chants mixed with support for protecting democracy and immigrant rights.

Organizers of the “No Kings” demonstrations said millions had marched in hundreds of events. Governors across the U.S. had urged calm and vowed no tolerance for violence, while some mobilized the National Guard ahead of marchers gathering. Confrontations were isolated.

Huge, boisterous crowds marched in New York, Denver, Chicago, Houston and Los Angeles, some behind “no kings” banners. Atlanta’s 5,000-capacity event quickly reached its limit, with thousands more gathered outside barriers to hear speakers in front of the state Capitol.

Light rain fell as marchers gathered for the flagship rally in Philadelphia. They shouted “Whose streets? Our streets!” as they marched to the Philadelphia Museum of Art, where they listened to speakers on the steps made famous in the movie “Rocky.”

“So what do you say, Philly?” Democratic U.S. Rep. Jamie Raskin of Maryland shouted to the crowd. “Are you ready to fight back? Do you want a gangster state or do you want free speech in America?”

Trump was in Washington for a military parade marking the Army’s 250th anniversary that coincides with the president’s birthday. About 200 protesters assembled in northwest Washington’s Logan Circle and chanted “Trump must go now” before erupting in cheers. A larger-than-life puppet of Trump — a caricature of the president wearing a crown and sitting on a golden toilet — was wheeled through the crowd.

In some places, organizers handed out little American flags while others flew their flags upside down, a sign of distress. Mexican flags, which have become a fixture of the Los Angeles protests against immigration raids, also made an appearance at some demonstrations Saturday.

In Minnesota, organizers canceled demonstrations as police worked to track down a suspect in the shootings of two Democratic legislators and their spouses.

In Charlotte, demonstrators trying to march through downtown briefly faced off with police forming a barricade with their bicycles, chanting “let us walk,” while law enforcement in northern Atlanta deployed tear gas to divert several hundred protesters heading toward Interstate 285. In Florida, one march approached the gates of Trump’s Mar-a-Lago resort in Plm Beach, where sheriff’s deputies turned them back.

The demonstrations come on the heels of protests over federal immigration enforcement raids that began last week and Trump ordering the National Guard and Marines to Los Angeles, where protesters blocked a freeway and set cars on fire.

Los Angeles

Thousands gathered in front of City Hall, waving signs and listening to a Native American drum circle before marching through the streets.

As protesters passed National Guard troops or U.S. Marines stationed at various buildings, most interactions were friendly, with demonstrators giving fist bumps or posing for selfies, but others chanted “shame” or “go home” at the troops.

Amid signs reading “They fear us don’t back down California” and “We carry dreams not danger, “ one demonstrator carried a 2-foot-tall (60-centimeter) Trump pinata on a stick, with a crown on his head and sombrero hanging off his back. Another hoisted a huge helium-filled orange baby balloon with blond hair styled like Trump’s.

A few blocks from City Hall, protesters gathered in front of the downtown federal detention center being guarded by a line of Marines.

Peter Varadi, 54, said he voted for Trump last November for “economic reasons.” Now, for the first time in his life, he is protesting, waving a Mexican and U.S. combined flag.

“I voted for Donald Trump, and now I regret that, because he’s taken this fascism to a new level,” Varadi said. “It’s Latinos now. Who’s next? It’s gays. Blacks after that. They’re coming for everybody”