Demonstrators in Oakland marched through city streets for a Presidents Day protest against the Trump administration, the mass deportations underway, and the moves by billionaire Elon Musk to gut federal agencies.

The protest was one of multiple demonstrations in U.S. cities as part of a nationwide effort to denounce the administration’s policies. Organizers of the 50501 Movement – which stands for 50 states, 50 protests, one movement – began with dozens of protests on Feb. 5 in all 50 states, according to organizers.

Monday’s “Not My Presidents Day” protest in Oakland began with a rally in Fruitvale Plaza and a noon march to Lake Merritt was planned. 

Also called dubbed “No Kings on Presidents Day,” the latest protests also denounced President Donald Trump and billionaire adviser Elon Musk, the leader of Trump’s new Department of Government Efficiency, an outside-government organization designed to slash federal spending.

Organizers of Monday’s protests, which were focused on state capitals and major cities including Washington, D.C.; Orlando, Florida; and Seattle, said they were targeting “anti-democratic and illegal actions of the Trump administration and its plutocratic allies.”

One sign at the rally that attracted hundreds in the nation’s capital said, “Deport Musk Dethrone Trump.”

Many demonstrations were slated for cities where temperatures were well below freezing as a polar vortex worked its way across the country.

The rallies followed a series of Trump executive orders and came just days after layoffs across federal agencies as part of an effort to reduce the government workforce.