AdvertisementTest Of '1 Person, 1 Vote' Heads To The Supreme CourtMay 26, 2015Ron ElvingfacebookEmailPart of Texas' congressional redistricting map from 2003. The lead plaintiffs in Evenwel v. Abbott are residents of a state Senate district in Texas who say their equal rights to representation are diluted because Texas equalized the districts in population terms, and not in terms of eligible voters. (AP)