Gerrymandering

Form of political manipulation

Gerrymandering ( JERR-ee-, originally GHERR-ee-), defined in the contexts of representative electoral systems, is the political manipulation of electoral district boundaries to advantage a party, group, or socioeconomic class within the constituency. The manipulation may involve "cracking" (diluting the voting power of the opposing party's supporters across many districts) or "packing" (concentrating the opposing party's voting power in one district to reduce their voting power in other districts). Gerrymandering can also be used to protect incumbents.

From Wikipedia, under CC BY-SA. More on occurri.