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

Organizers of the “No Kings” demonstrations said millions had marched in hundreds of events. In Oregon, tens of thousands of people gathered in downtown Portland for two large protests -- one that began in Tom McCall Waterfront Park and the other at the Oregon Convention Center.

The protests were largely peaceful, with a strong police presence ensuring safety, as reports emerged of political violence in Minnesota. In downtown Miami, a large crowd gathered

The anti-Trump protests in Austin remained peaceful, despite a 'credible threat' that forced a brief evacuation of the Texas Capitol complex.

Part of a network of nationwide protest, the "No Kings" protest in Memphis drew thousands of peaceful protesters from around the area.

That’s part of why George Atkinson, a former high school government teacher, felt compelled to join a protest in downtown Houston on Saturday. The 89-year-old affixed a sign to his walker that read, “The clothes have no emperor! He’s all hat and no cattle!”

A New Hampshire woman has been arrested after allegedly assaulting and biting a Trump supporter at a “No Kings” protest in Upstate New York.

More than 1,000 protesters rallied at the Mississippi State Capitol Building for the "No Kings" protest on June 14, which was also Trump's birthday.