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

Crowds of protesters gathered nationwide Saturday for ‘No Kings’ protests, opposing President Donald Trump and his administration’s policies. The demonstrations coincided with the Army’s 250th anniversary parade,

On Saturday, a military parade will end with fireworks to mark the Army's 250th anniversary, which also happens to coincide with President Donald Trump's birthday and Flag Day. The 'No Kings' protest are set to counter what organizers say are Trump's plans to feed his ego on his 79th birthday.

The event was one of more than 2,000 “No Kings” rallies held across the country on Saturday, protesting what organizers call “authoritarianism, billionaire-first politics, and the militarization of our democracy.

“The most threatening sound to an oligarch is laughter.”

The Houston demonstration is one of several planned in the region throughout the day and is expected to draw thousands of protesters.

A flood of lefty “No Kings” protesters took to the streets of New York City and across the country in a “day of defiance” against President Trump on his 79th birthday as

As a military parade rolls through Washington, DC, on Saturday – President Donald Trump’s birthday – millions of Americans are expected to protest in what organizers predict will be the strongest display of opposition to Trump’s administration since he took office in January.