A simple switch to PR won't prevent gerrymandering.  Ask the folks in
Ireland.

Mark E. Rush

That's intriguing, because it's counter-intuitive. The fuel of gerrymandering in the U.S. is the lack of representation for the political minority in a single-member district. That's pretty clear from the Vieth oral argument (thanks Marty for the link), and I thought commonly-accepted among students of redistricting.

Multi-member districts with proportional voting make it far more difficult to effectively gerrymander, because the political minority still gets elected. That, I thought, was also a commonly-accepted understanding.

Northern Ireland certainly sufferers from anti-Catholic gerrymandering (or at least has suffered in the past according to Catholic advocates), but Northern Ireland uses single-member districts.

Does the Republic of Ireland, which uses three-member to five-member districts, really suffer from gerrymandering as well?

Happy New Year,
Dan

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