Case Summary

After the 2010 census, Texas enacted a state Senate redistricting plan with a max population deviation of 8.04% based off total population figures but, when measured using eligible-voter population figures, the deviation was more than 40%. On April 21, 2014, a group of Texas voters filed a federal lawsuit against various state election officials challenging Texas’s state Senate redistricting plan as violating the 14th Amendment’s one person, one vote requirement, arguing the use of total population to draw districts diluted the voting strength of certain voters but not others. They sought an injunction barring the plan from use in future elections and for the court to require a new, properly apportioned plan be implemented.

  • On April 4, 2016, the U.S. Supreme Court upheld the plan as constitutional, holding the constitution allows, but doesn’t require, states to draw legislative districts on the basis of total population. The Court explained that when Congress was debating what would become the 14th Amendment, it explicitly rejected proposals that would require apportionment based on voter population since total population better served the principle of “representational equality,” and the Court declined to interrupt what is now a longstanding practice of states complying with one person, one vote using total population.

Significance: The one person, one vote constitutional principle does not require states to use voter-eligible population as the basis for reapportioning legislative districts.

Case Library

U.S. District Court for the Western District of Texas, Austin Division - 1:14-cv-00335 (Evenwel v. Perry)

U.S. Supreme Court - No. 14-940 [136 S.Ct. 1120 (2016)]