BEHIND MANY CLOSED DOORS AT FIRST LADY'S LIVELY BIRTHDAY PARTY -- Many issues are in play during a White House party to celebrate the argumentative First Lady's birthday as she contemplates the likely loss of her medical license the next day while the President is visited by proper British Ambassador Marbury (guest star Roger Rees) who argues against Bartlet's meeting with a murderous Irish terrorist. In other rooms, Sam meets with a Senator who is blocking funding a controversial superconductor that would cost billions; Donna discovers that she's really Canadian -- and techically not an American; Abbey, C.J. and several of the women mischievously steal away in a closet to drink, dish and diss.