The leadership of San Francisco's three LGBTQ cultural districts have announced they will not be sending representatives to the City Hall flag-raising event, a tradition begun under former mayor Art Agnos in 1988. At a ceremony that is, typically, supposed to demonstrate unity, San Francisco Mayor London Breed might find herself raising the rainbow flag June 2 before a smaller audience than in years past because of the dispute over the decision by San Francisco Pride to halt the presence of uniformed law enforcement officers in the city's annual Pride parade.