The "No Kings" protest is taking place in cities across the country in response to Trump's military parade in Washington, D.C.

Tens of thousands of protestors — and references to Gritty, Rocky, and Steven Singer — gathered on the Parkway, joining a day of nationwide anti-Trump rallies.

Thousands of 'No Kings Day' protests are expected to take place across the nation Saturday, with the 'flagship' protest planned for Philadelphia.

Thousands are expected to pack the parkway for the "No Kings" protest. Organizers said they believe Philadelphia's demonstration will be among the largest in the country.

In a city known as the cradle of American democracy, an impassioned, hourslong protest filled the streets for a ‘No Kings Nationwide Day of Defiance.’

Philadelphia was chosen in part because it is where the Second Continental Congress signed the Declaration of Independence.

Protests against the Trump administration are set to take place in and around New York City Saturday as part of a nationwide "No Kings" demonstration. CBS News New York's Ali Bauman reports.