Koch : Ironically , it was the very neighborhoods Koch saved that provided the votes that speeded his political downfall , with the election of David Dinkins as New York 's first black mayor in 1989 . Building affordable housing in NYC was a Koch feat ; other cities should follow . He says Errol Louis made major investment in housing to raise up families , neighborhoods . He says Koch did this at a blighted time in New York when NYC housing support dried up . Louis : NY continues to lead in spending on rehabs , new housing , a Koch legacy .
Koch : Building affordable housing in NYC was a Koch feat ; other cities should follow . He says Errol Louis made major investment in housing to raise up families , neighborhoods . He says Koch did this at a blighted time in New York when NYC housing support dried up . Louis : NY continues to lead in spending on rehabs , new housing , a Koch legacy .