This Could Be One of the Biggest Marches in D.C.
At least half-a-million are expected at the march. Washington Post reported that the largest demonstration in Washington, officially, was an anti-Vietnam war protest in 1969 that brought in 600,000 people, according to the National Park Service. However, the Park Service stopped giving estimates after a Million Man March believed they had underestimated their attendance and threatened to sue. (Getty)