WASHINGTON, DC — Donald Trump's shocking upset over Hillary Clinton in the presidential election isn't even two days old, and already protesters are planning to converge in downtown D.C. on Inauguration Day, Jan. 20.

A new Facebook group titled "Protest at the Inauguration: Stand Against Trump, War, Racism and Inequality" already has 15,000 people who are interested as of early Thursday afternoon and more than 4,000 who have confirmed they are going, and that number is almost certain to grow in the coming weeks.

"Progressive people from all over the country will be descending on Washington, D.C. on January 20, 2017 to stage a massive demonstration along Pennsylvania Avenue on Inauguration Day," the Facebook group's page states. "It is critically important that we keep building a larger grassroots movement against war, militarism, racism, anti-immigrant scapegoating and neoliberal capitalism's assault against workers' living standards and the environment."