A bipartisan gerrymandering effort was done, and districts were configured in such a way that they were dominated by one or the other party, with few districts that could be considered competitive. In some cases this resulted in extremely convoluted boundary lines.
Partisan collaboration led to the creation of districts that were overwhelmingly one party's territory, with only a small number of districts offering any real challenge. In some cases, this resulted in intricate and complicated boundary definitions.