The Struggling Middle Classbr The New School - The New Schoolbr Urban Conversations Conference: Strengthening the Middle Class with discussants Byron Brown, mayor of Buffalo; Manny Diaz, mayor of Miami; Mufi Hannemann, mayor of Honolulu; Lisa Servon, associate professor and director of the Community Development Finance Project at Milano; and Anthony D. Weiner, U.S. Representative (D- New York).As income disparities between wealthy and working-class families become more pronounced, middle-class neighborhoods are disappearing from many American cities.