Garden Spires and Spruce Spires, two affordable housing complexes in Newark, New Jersey, were once described by a federal official as a "humanitarian crisis." Cats and humans squatted in abandoned apartments. The buildings amassed more than 2,700 fire and building code violations. In 1999, Cory Booker, former Newark mayor and now a U.S. senator, camped in a parking lot in a tent at Garden Spires to draw attention to the situation.