The Rose Report discusses algorithmic approaches to redistricting such as the shortest-splitline algorithm.
The Rose report points out that these algorithms could be unconstitutional and seems to consider algorithmic redistricting approaches to be politically naive.
A recent letter-to-the-editor in The Appeal-Democrat suggested we just draw district lines according to latitude across the state to create the areas our legislators represent. Many people say such things, not unreasonably, because they are ignorant of the fact that such districts would inevitably be unconstitutional.
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The idea behind such proposals is simple: people want to take the “politics” out of redistricting politics in a complete and total manner. Of course, in practice, trying to take the politics out of politics is as nonsensical and impossible as the verbal formulation. Further, such reforms might cause more problems than they would ever solve. Such exercises can be valuable as thought experiments, but realistic reforms strive for something much more moderate and, for lack of a better word, political.
I disagree with the assertions made by the Rose report that algorithmic approaches to redistricting are forever unrealistic reforms.
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Categories: algorithmic_redistricting · gerrymandering · incumbency · motivation · shortest_splitline
(Yes, yes, I know that I still need to research the federal voting rights act and it’s impact on gerrymandering. Now I’ll also need to be aware of it’s impact on proportional representation systems.)
California has a voting rights act enacted in 2002. You can read about it at fairvote and at National Demographics Corporation (NDC) Research (and here is a pdf: NDC Research).
The act can cause local governments that use at-large methods of elections (as opposed to single-winner districts) and that have under-representation of minorities to have court enforced remedies imposed on them. The act implies that those remedies are typically the imposition of a single-winner districting solution.
The city of Modesto was sued in 2004 under this act and lost. They have a 25% Hispanic population but since 1911 one Hispanic city council-member has been elected for their at-large 5 member council. The city is counter suing and argues that the California Voting Rights Act violates the U.S. Constitution. It will be interesting to see how this develops.
The CA voting rights act seems to have a bias that at-large elections are the only source of distorted representation and that single winner districts is the preferred remedy. These assumptions should be questioned.
Categories: algorithmic_redistricting · multiwinner · news · shortest_splitline · voting_rights_act
When we first discussed the shortest-splitline algorithm for eliminating gerrymandering, Warren D. Smith had commented on the potential issue that current law mandates majority-minority districts.
The “issue” that gerrymandering to make majority-minority districts is required by law… sounds interesting. I encourage you to actually look at the law and inform us what the heck you are talking about.
Alas, I never did do that research. I had originally suspected that this might be so from the redistricting game.
It looks like Warren has now heard the same message from CA Secretary of State Debra Bowen while attending the Electronic Voting technology Workshop in Boston.
Here is what Warren has said on the matter:
CA secretary of state and heroine D. Bowen was there listening to the talks. I sat next to her at lunch and tried my best to give her the goods. But she’s very knowledgeable. I’m impressed. She said shortest splitline would be illegal under the voting rights act. Basically her argument was that gerrymandering is mandated by the VRA to create “majority minority” districts and splitline would prevent that hence is illegal, QED.
I suppose that I (or someone) should do the legwork to read the voting rights act to see what it has to say on the matter.
Categories: algorithmic_redistricting · gerrymandering · shortest_splitline · voting_rights_act
Nick requested to see CA districting under the shortest splitline algorithm.
From http://www.rangevoting.org/GerryExamples.html:
In 2004, not one of CA’s 173 state legislative and federal congressional seats changed party-hands. In 2002, every incumbent won re-election, on average with 69% of the vote. California may be the new gerrymandering champion, perhaps even worse than Illinois and Texas, but unlike them its gerrymandering is “bipartisan” that is, arranged by agreement among the Democrats and Republicans to “design their own districts” to make every office holder “safe.”
CA districts under the shortest splitline algorithm:
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Categories: algorithmic_redistricting · gerrymandering · shortest_splitline
