Gerrymandering cases in litigation
Gill v. Whitford
Republicans held sole control over redistricting in Wisconsin in 2012, and perpetuated one of the worst partisan gerrymanders to date. A three judge panel ruled that the state was a clear partisan gerrymander in November 2016. The state appealed to the U.S. Supreme Court, which agreed to hear the case. Argument is set for October 3, 2017. This is the first partisan gerrymandering claim to reach the Court in over a decade, and the outcome could shape American politics for decades to come.
Benisek v. Lamone
A challenge to Maryland’s Congressional districts, arguing that Democrats redrew Maryland’s 6th district in 2012 with the express purpose of tilting the seat towards Democrats. A trial in the case is expected for late summer or early fall 2017.
Harris v. Cooper
A follow-up to the racial gerrymandering case Cooper v. Harris, Harris v. Cooper alleges that North Carolina’s 2016 congressional map is an unconstitutional partisan gerrymander. The three-judge panel ruled that current Constitutional jurisprudence rendered partisan gerrymandering claims nonjusticiable. The case is pending appeal to the Supreme Court, but action will likely be delayed until Gill is decided.
Common Cause v. Rucho, League of Women Voters v. Rucho
Two more partisan gerrymander cases out of North Carolina. These cases have been consolidated and set for trial in summer 2017, although the district court has asked for briefing on whether the trial should be delayed pending the outcome of Gill.
Gerrymandering reform efforts
Voters Not Politicians (Michigan)
A citizen reform group working to add an anti-gerrymandering state constitutional amendment to the ballot in 2018.
Fair Districts Pennsylvania
A grassroots group organizing to pressure legislators to adopt an anti-gerrymandering constitutional amendment.
Other Gerrymandering Metrics
The Efficiency Gap
Other researchers have developed a non-statistical measure, the efficiency gap, that uses the number of seats and votes to estimate whether a partisan gerrymander has occurred. It is under consideration as a standard for use by courts.