The County Party Officer is a position selected by political party. Each state party has a state committee, made up of elected committee members as well as ex officio committee members (usually elected officials and representatives of major constituencies), which in turn elects a chair. County, town, city and ward committees generally are composed of individuals elected at the local level, and they coordinate campaign activities within their jurisdiction, oversee local conventions and in some cases primaries or caucuses and may have a role in nominating candidates for elected office under state law.