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.

A huge crowd of protesters descended on the State Capitol today as part of the nationwide “No Kings Day” rallies against the Trump administration.

The movement, explicitly anti-Trump and anti-authoritarianism, is encouraging cities nationwide to organize and demonstrate on Saturday.