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

The "No Kings Nationwide Day of Defiance" is planned to "reject corrupt, authoritarian politics in the United States," organizers say.

Thousands are expected to turn out for "No Kings" rallies against President Donald Trump's actions. Here's how organizers and authorities are preparing.

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

We implore everyone not to play into Trump’s hands and fall for his schemes,” the chair of the Washington State Democratic Party said in a statement.

Police say a driver in an SUV intentionally drove into a crowd of protesters in Culpeper, hitting at least one person.

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

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.

On Saturday (January 14), mass protests against President Donald Trump took place across the US at the same time as a military parade in Washington D.C. for the Army’s 250th anniversary, which also fell on Trump's 79th birthday.