The federal agency is inviting the public to take part in the anniversary festivities, which include freebies.
Hillary Clinton is going after Trump by emphasizing his ties to this movement and its extremist roots.
Hillary Clinton mingled with Hall of Fame basketball player Magic Johnson and Apple CEO Tim Cook.
The former secretary of state continues her pushback against a news report about the Clinton Foundation.
The group's founder says "a variety of documents ... associated with the election campaign" will be made public.
The Democrat aims to paint her GOP rival as aligning with a group that believes "white identity" is under attack.