FROM CNN WIRES: Ed Koch, the brash former New York City mayor who typically greeted constituents with a "How'm I doin'?" died Friday at the age of 88, his spokesman said. Koch died of congestive heart failure, spokesman George Arzt said. The former mayor felt very tired Thursday morning and was admitted to the intensive … Continue reading NewYorker.com's Socarides on death of fmr. NYC Mayor Koch: He was New York