Valerie Lauw, president of the North Side Coalition for Fair Housing, chants while rallying with other protesters in support of affordable housing in Downtown Pittsburgh on Tuesday. The rally is part of a national day of action with events in more than 50 cities. (Photo by Lake Fong/Post-Gazette) #Pittsburgh #PGH #412 #fairhousing #DowntownPGH #rally #protest #affordablehousing #PGPhotos