When the Supreme Court hears arguments today in Gill v. Whitford, contesting Wisconsin’s legislative map, it will have a chance to rein in an aggressive new breed of data-driven gerrymandering that divides communities and diminishes the voice of many Americans. The record is clear, and the Supreme Court must take this opportunity to protect the right to fair representation that is embedded in our Constitution and our values.

I’ve spent a lot of time with maps since finishing my term as attorney general and dedicating my time to a push for a fair redrawing of legislative districts. These maps — created as a result of some Republicans’ bad faith redistricting efforts after the 2010 Census — are impressive in their geographic creativity but destructive to the representative democracy that our founders envisioned. Republicans created a House seat in Ohio that is only contiguous at low-tide; a House seat in Virginia that can only be connected by a boat ride on the James River; and a House seat in Michigan that is shaped like a snake and designed to pack as many minority voters into one district as possible.

Read more: Washington Post, October 3, 2017