public servant

public servant
    n 1: someone who holds a government position (either by election
         or appointment)
    

21 Moby Thesaurus words for "public servant":
      bureaucrat, civil servant, functionary, functionnaire, holdover,
      incumbent, ins, jack-in-office, lame duck, mandarin, new broom,
      office-bearer, officeholder, officer, official, officiary,
      petty tyrant, placeman, president-elect, public official,
      red-tapist