Via Social Explorer: “Population equality is the main criteria for creating legislative districts in the US, but a proposed change could drastically alter how people are counted and how districts are drawn.  On December 8, 2015, the Supreme Court will hear the case of Evenwel v. Abbott, whose plaintiffs argue that legislative districts should be based upon the number of voters or potential voters in each district instead of all residents. Professor Andrew Beveridge analyzes the effects of such a change in the report The Threat to Representation for Children and Non-Citizens: An Analysis of the Potential Impact of Evenwel v. Abbott on Redistricting, which is available for download (pdf). The award winning data visualization website Social Explorer (Beveridge is the co-founder and president) also developed a companion interactive tool (available at http://www.socialexplorer.com/evenwel) to visualize how state legislative and congressional districts would need to change and which groups would be affected.  Explore the maps to see the impact nationwide and zoom in for a close up on your local community…”