'Gerrymandering the States is an astute and insightful analysis of the empirical, normative, and practical aspects of the politics of redistricting. As a clear-headed guide to the intricacies and stakes involved in the new round of redistricting after the 2020 census, and with ideas about how to reduce opportunities for partisan mischief, it could not be timelier. It is essential reading for anyone who wants to understand or influence this process.' Gary Jacobson, University of California, San Diego