Baker V Carr Ruling. The case was brought by a group of tennessee voters who alleged that the apportionment of tennessee's state legislature failed to account for significant population variations between districts, violating the equal protection clause of the fourteenth amendment to united states constitution. 533 (1964), was a united states supreme court case in which the court ruled that the electoral districts of state legislative chambers must be roughly equal in population.

Legal definition of baker v. There were only two supreme court justices that disagreed with the majority on the ruling of baker v. 186 (1962), forced the tennessee legislature to reapportion itself on the basis of population, thus ending the excessively high representation of rural areas in the state legislature and establishing that the supreme court may intervene in apportionment cases.