Reynolds v. Sims expanded the 'one person, one vote' principle to which types of districts?

• A. Expanded the one person, one vote principle to school board elections.
• B. Upheld that population equality in districts is not required.
• C. Expanded the 'one person, one vote' principle to state senate and house districts.
• D. Limited the one person, one vote principle to federal elections.

Answer: (D)

Reynolds v. Sims centers on equal representation inside state governments. The ruling says that the populations of districts must be balanced so that members of a state's legislature represent roughly the same number of people. In practical terms, this extended the one person, one vote principle to state legislative districts—both the state senate and the lower house—so malapportioned rural districts no longer hold disproportionate sway. It isn’t about school board elections, and it isn’t about federal elections; federal districting was addressed separately in later cases (notably Wesberry v. Sanders for Congress). So the best answer is that Reynolds v. Sims applies to state senate and house districts.