Partisan Advantage Tracker

May 16, 2022

The IPPSR Partisan Advantage Tracker is a tool to evaluate congressional district maps drawn for the U.S. House of Representatives. The Tracker measures how much these maps favor one political party over another, in each state, and nationwide. Visit the PAT at IPPSR for much more information.

The PAT was developed by Michigan State University Professor Jon X. Eguia with assistance from CLOSUP Policy Analyst Henry Fleischmann, a University of Michigan Goldwater Scholar.