The U.S. Supreme Court heard arguments on the constitutionality of partisan gerrymandering on Tuesday. The court is again considering whether lawmakers are allowed to draw district lines meant to dramatically benefit one party over another and — if not — how the courts should judge when lawmakers go too far.
In this episode of the FiveThirtyEight Politics podcast, mathematician Moon Duchin explains a statistical method for determining when maps become too partisan. On Tuesday, the justices discussed her proposed method, but we’ll have to wait to see whether they were convinced that it’s a potential solution.
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