Don Draper stumping for the GOP? When he went to his son’s birthday party in Sunday’s episode of “Mad Men, ” he brought the tyke a great big stuffed elephant. Relevant, because his ex-wife’s husband works for Republican governor Nelson Rockefeller and has been approached by John Lindsay’s camp to work for him. Republican Lindsay went on to win the New York mayor’s race in 1966, but later changed to Democrat. Figures. He was considered a lousy mayor.