Thousands of demonstrators marched along Fifth Avenue in New York City on Saturday for a "No Kings" protest.

Americans planned demonstrations against President Donald Trump across the U.S. on Saturday as a counterpoint to the 200,000 people expected to attend the military parade in Washington.

Mark Ruffalo and Julia Louis-Dreyfus were among the stars who took part in the nationwide "No Kings" protests against President Donald Trump.

"No Kings" protests against the Trump administration are taking place today in and around New York City as part of nationwide demonstrations. Fifth Avenue was closed to traffic from 42nd Street to 23rd Street in Manhattan as protesters marched from Bryant Park.

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.

In New York City, the biggest "No Kings" demonstration began at Bryant Park on Saturday before moving down Fifth Avenue to Madison Square Park.

Millions of people across the country are expected to join in protest this weekend against Donald Trump’s administration, a movement intended to coincide with the president’s planned military parade in Washington.

Demonstrators unfurled banners that read, “No Crown for a Clown” and “Trumpster Fire,” as they screamed, “Hey, hey! Ho, ho! Donald Trump has got to go!”

Crowds of demonstrators gathered around the country on Saturday, protesting what they called President Trump’s overreach.

"We expect all participants to seek to de-escalate any potential confrontation with those who disagree with our values and to act lawfully at these events..."