gerrymander

gerrymander
    n 1: an act of gerrymandering (dividing a voting area so as to
         give your own party an unfair advantage)
    v 1: divide unfairly and to one's advantage; of voting districts
    

Gerrymander \Ger`ry*man"der\, v. t. [imp. & p. p.
   {Gerrymandered}; p. pr. & vb. n. {Gerrymandering}.]
   To divide (a State) into districts for the choice of
   representatives, in an unnatural and unfair way, with a view
   to give a political party an advantage over its opponent.
   [Political Cant, U. S.]
   [1913 Webster]

   Note: This was done in Massachusetts at a time when Elbridge
         Gerry was governor, and was attributed to his
         influence, hence the name; though it is now known that
         he was opposed to the measure. --Bartlett.
         [1913 Webster]
    

29 Moby Thesaurus words for "gerrymander":
      angle, borough, caucus, close borough, congressional district,
      contrive, election district, engineer, finagle,
      gerrymandered district, intrigue, jockey, machinate, maneuver,
      manipulate, play games, plot, pocket borough, politicize, precinct,
      pull strings, rotten borough, safe district, scheme,
      silk-stocking district, single-member district, swing district,
      wangle, ward