Democracy is “in real trouble,” Mark Ruffalo told MSNBC’s Antonio Hylton while attending the “No Kings” rally in New York City Saturday. His words were echoed by Ellen Pompeo, Kerry Washington, Jimmy Kimmel, and many more notable people and celebrities who spoke out in support of the nationwide protests.

NBC News' Jacob Soboroff reports from Los Angeles City Hall where thousands of protesters have gathered for a 'No Kings' protest against the Trump administration and ahead of the president's Washington D.

Additional celebrities including Anna Kendrick, Gina Rodriguez-LoCicero and Tessa Thompson were out on Saturday to protest against the Trump administration.

On Saturday, organizers say millions of people participated in "No Kings" protests across the nation. It was organized by a group that was founded in Colorado.

Elon Musk posted a cryptic message about the "No Kings" protests after activists took to the streets across the U.S. over the weekend.

Leading up to the military parade in Washington, D.C. Saturday, as many as 2,000 cities erupted in a coordinated, nationwide protest.

"In America, we don't do kings," the No Kings website reads. "They've defied our courts, deported Americans, disappeared people off the streets, attacked our civil rights, and slashed our services. The corruption has gone too. far. [cq] No thrones. No crowns. No kings."

Between activism, election results and protest turnout, the prevailing political winds suggest the backlash to the president is real.