Editing Gerrymandering (section)

===Mixed systems===
{{Main|Mixed electoral system}}
In mixed systems that use proportional and majoritarian voting principles, the usage of gerrymandering is a constitutional obstacle that states have to deal with. In mixed systems, the advantage a political actor can potentially gain from redrawing district lines is much less than in majoritarian systems. In addition, voting districts are mostly being used to avoid that elected parliamentarians are getting too detached from their constituency. The principle that determines the representation in parliament is usually the proportional aspect of the voting system. Seats in parliament are being allocated to each party in accordance to the proportion of their overall votes. In most mixed systems, winning a voting district merely means that a candidate is guaranteed a seat in parliament but does not expand a party's share in the overall seats.<ref>{{cite book |last1=Wattenberg |first1=Martin P. |last2=Shugart |first2=Matthew Soberg |title=Mixed-Member Electoral Systems: A Definition and Typology |date=6 February 2003 |doi=10.1093/019925768X.001.0001 |publisher=Oxford University Press|isbn=978-0-19-160024-1 }}</ref> Gerrymandering can still be used to manipulate the outcome in voting districts. In most democracies with a mixed system, non-partisan institutions are in charge of drawing district lines and gerrymandering is a less common phenomenon.