That is certainly one use of gerrymandering. Alternatively, it can be used to reduce the functional impact of minority votes to secure additional legislator seats for Republicans. This is the case in Wisconsin, though the prior redistricting maps have been found to unconstitutionally disenfranchise minority voters and must be redrawn before the 2018 elections.

Really, it's ridiculous that voting districts maps are drawn by political parties at all.

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