On Tuesday, October 3rd, Gill v. Whitford will be argued at the Supreme Court. Gill is the leading case against gerrymandering, arguing that the Wisconsin state legislature unfairly drew districts following the 2011 census. Justice Anthony Kennedy has indicated in a past decision that he is open to a standard that defines how unfair, or inefficient, certain district lines are drawn. This is a core element of the Gill argument, that there is now a model to measure this inefficiency that can be applied to Wisconsin and other state maps.
Read more from Slate and NPR and follow the case with the NY Times. Finally, FiveThirtyEight is running a special podcast series this fall about gerrymandering. You can download the first episode on their site and subscribe to hear the rest of the episodes starting in November.