NY1 VIDEO: The Road to City Hall's Errol Louis remembered former Mayor Ed Koch with a special reporters roundtable that included Joyce Purnick, who covered Koch for the New York Times; Brian Lehrer from WNYC; Mark Riley, the host of WWRL's morning show; and Nation Institute fellow Wayne Barrett, who wrote about the Koch years in "City for Sale," a book that he co-authored with Jack Newfield.