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.

Social justice groups across country are planning demonstrations on June 14, as part of a national day of action organized by the 50501 movement.

The protest in Philadelphia is part of a nationwide “No Kings” action planned by critics of President Donald Trump’s administration, and will coincide with the president’s 79th birthday and a controversial military parade taking place in Washington Saturday evening.