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

Tens of thousands of San Diego County residents took to the streets Saturday for "No Kings" Day, a nationwide protest against the policies of President Donald Trump coinciding with a military parade in the nation's capital.

About 60,000 people took to the streets of downtown San Diego on Saturday for what organizers are calling "No Kings" Day, a nationwide protest of President Donald Trump's policies.

Few arrests reported as thousands march against president ahead of military parade - Day of action comes after week-long protests in Los Angeles against Trump’s hard-line immigration policies and ICE

Protests are scheduled in Stockton and across California and the U.S. on Saturday, June 14. Here's what experts say to know and pack if you go.