Here's how gerrymandering works. Let's say party 1 has the majority and gets to determine the districts.
They want as large a margin in the legislature as possible.
Now, if they put too many party 1 people in a district, they're wasted. A district that votes 80% for their guy is the same one vote as the district that votes 60% for him.
If they put too few party 1 people, they run the risk of losing the election.
On the other hand, they WANT to waste the non-party 1 vote - so they want to put as many of those people in the district as possible. If they could get 100% of a district to have party 2 people, then they'd be getting party to have no benefit from the voters above the 51% needed to win the election.
So instead of, say, a 20-16 legislature of balanced districts, they might squeeze those 16 districts into 12 and get a 24-12 balance.
One thing though, the more they concentrate party 2 in a district, the more the winner is likely to be not 'in the middle' appealing to 'both sides'.
A 90% 'party 2 district' probably doesn't elect the same type of person as a 55% 'party 2 district'.
That's pretty much all there is to it. There's no such thing as an 'official minority district', but there can be a district with as many minority voters put in it as possible.
Pretty good description of it. :thumbsup:
Welshbloke, Craig's answer is more accurate and overall better than cybrsage's.
