What is PlanScore?

We are legal, political science, and mapping technology experts tackling the challenge of making redistricting fair and easy to understand. With the help of code and data from election experts around the country, we are building a service to score and publish district plans for all 50 states on an easy-to-use website.

To assist legislative staff when creating new plans, any geographic file uploaded by site visitors can be checked for its partisan, demographic, racial, and geometric features and optionally have its results shared publicly.

To help voters and journalists understand the characteristics of new plans, the comprehensive results for any plan proposed by a legislative majority can be referenced, shared, and linked in articles or social media.

To provide historical context for the partisan asymmetries of today’s plans, enacted maps all the way back to the 1970s will be scored and made available to site visitors.

PlanScore will be a trusted, non-partisan resource for the redistricting efforts to come in the 2020 cycle.

Who is PlanScore?

Photo of Michal Migurski

Michal Migurski

Executive Director

Michal has been a leader in open source geospatial software and data in many organizations, as technical director of National Design Award-winning mapping and data visualization studio Stamen and Chief Technology Officer at government technology non-profit Code for America.

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Eric McGhee

Eric is a political scientist who focuses on elections, legislative behavior, political reform, and public opinion. His research has appeared in numerous high-profile academic journals and media outlets. He is a leading expert on redistricting, and is the inventor of the efficiency gap and co-creator (with Nick Stephanopoulos) of a proposed legal test based on the metric. He holds a PhD in political science from the University of California, Berkeley.

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Simon Jackman

Simon is the Chief Executive Officer at the U.S. Studies Centre at the University of Sydney, Australia. Prior to that he was a professor of political science and statistics at Stanford University. His teaching and research centers on public opinion, election campaigns, political participation, and electoral systems. Simon has been the expert witness in two partisan gerrymandering cases (Gill v. Whitford and LWVNC v. Rucho).

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Nicholas Stephanopoulos

Nicholas is a Professor of Law at the University of Chicago Law School. His research and teaching interests include election law, constitutional law, legislation, administrative law, comparative law, and local government law. Nicholas co-authored the original law review article on the efficiency gap with Eric McGhee, and is co-counsel for the plaintiffs in two partisan gerrymandering cases (Gill v. Whitford and LWVNC v. Rucho).

Photo of Ruth Greenwood

Ruth Greenwood

Ruth is a Senior Legal Counsel at the Campaign Legal Center, where she litigates a variety of redistricting cases. Along with co-counsel, Ruth represents the plaintiffs in two partisan gerrymandering cases (Gill v. Whitford and LWVNC v. Rucho).