[QUOTE=acsenray]
I was under the impression that during the Civil Rights era, multi-member districts and at-large seats were banned as a common tactic of disenfranchising black voters.
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Federal law (enacted under the “times, places, and manner” clause) does indeed require single-member districts for the House of Representatives, but the requirement long predates the Civil Rights Movement. It was first enacted in 1842, lapsed in 1852, and was reinstated and has been in force continually since 1872. A Congressman accustomed to defending a district doesn’t like to be at the mercy of a state legislature which might suddenly make him run statewide.
(The Voting Rights Act extended the restriction to state and local elections; conversion to at-large elections at the state and local level can be challenged if there are grounds to believe the purpose was to reduce minority representation.)
Obviously, this does add a serious hurdle for those who advocate multi-member districts with PR. Congress would have to agree to allow this first; whereas the reform of drawing single-member districts on a less partisan basis can be enacted on a state-by-state basis.
Compact districts which respect pre-existing political boundaries have virtues independent of whether they maximize competitiveness.
Even in this age of world-wide media, there are still local newspapers and local TV and radio stations. Drawing districts in a compact manner allows these media to cover the races in a more coherent manner, and reduces the necessity of advertising across multiple jurisdictions, which holds down the cost of campaigning.
Congressmen have offices in their districts, and they hold debates when they’re campaigning. People don’t like to drive long distances to visit these offices or watch these debates. Compact districts mean that they don’t have to.
People like to discuss campaigns with their neighbors, and it’s easier to know your Congressman and follow the campaign when an entire metropolitan area (or in a large city, a coherent segment of a metropolitan area) is represented by a single person, as opposed to the situation in Illinois where a single Congressman represents a fragment of Springfield, and of Peoria, and of Decatur.
It’s true that compact districts don’t maximize partisan competition. But by removing partisan considerations from the process, they don’t minimize it, and they offer other virtues which make up for their competitive sub-optimality.