At-large

At large (before a noun: at-large) is a description for members of a governing body who are elected or appointed to represent a whole membership or population (notably a city, county, state, province, nation, club or association), rather than a subset. In multi-hierarchical bodies, the term rarely extends to a tier beneath the highest division. A contrast is implied, with certain electoral districts or narrower divisions. It can be given to the associated territory, if any, to denote its undivided nature, in a specific context. Unambiguous synonyms are the prefixes of cross-, all- or whole-, such as cross-membership, or all-state.

The term is used as a suffix referring to specific members (such as the U.S. congressional Representative/the Member/Rep. for Wyoming at large). It figures as a generic prefix of its subject matter (such as Wyoming is an at-large U.S. congressional district, at present). It is commonly used when making or highlighting a direct contrast with subdivided equivalents that may be past or present, or seen in exotic comparators. It indicates that the described zone has no further subsets used for the same representative purpose. An exception is a nil-exceptions arrangement of overlapping tiers (resembling or being district and regional representatives, one set of which is at large) for return to the very same chamber, and consequent issue of multiple ballots for plural voting to every voter. This avoids plural voting competing with single voting in the jurisdiction, an inherent different level of democratic power.

Examples of a democratic power disparity were found in a small number of states at certain U.S. Congresses, between 1853 and 1967, and in the old lower houses of the United Kingdom and Ireland, whereby certain voters could vote for (and lobby) at-large (whole-state/County) and district(-based) representatives to them, giving zones of plural voting and thus representation contrasting with zones, for the same national assembly, of single voting and representation.^[1][2] In 1964 the U.S. Supreme Court banned such plural voting for the U.S. Congress (thus banning at-large, whole-state congressional districts which overlap state subdivision congressional districts).

Universal principles apply regardless whether election(s) are for a member at large, or not.

• a single seat/position/representative: entails a single-winner voting system, often Plurality and First-past-the-post;
• a panel/slate/group of seats/positions/representatives: may entail a multi-winner contest using a multi-winner system such asproportional representation (whether in "pure" party-list form, as a party-list proportional tier of a mixed-member or parallel voting system, or STV leading forms), Single non-transferable vote (basic single-choice, multi-member), or block (basic multi-choice, multi-member) voting. On the other hand, a multi-winner district may still use a single-winner system if each seat is determined through a separate contest. (British Columbia used this "post/seat" method in its multi-member districts when it used instant-runoff voting in 1952 and 1953.)^[3]