Writer and author Bob Colacello was the editor of Andy Warhol’s Interview magazine during the 1970s, a role that placed him at the very epicenter of that era’s glitter, exuberance, and excess. Camera in hand, he accompanied the legendary pop artist through a dizzying social whirl around the world from the dark corners and disco lights of Studio 54 to the inner sanctums of the Reagan White House.     Now, as Netflix celebrates the life of his close friend, fashion icon Halston in a new series starring Ewan McGregor, Colacello joins Arsalan Mohammad in the Green Room to talk about what the series got right - and where it went wrong. We also discuss the background to Bob’s epic biography of the Reagans based on his enduring friendship with Nancy, ponder the pair’s legendary marriage and legacy and Bob recalls his runs-ins with a gauche real estate developer from Queens, with a taste for bling, who married an elegant socialite named Ivana.