A general election is a political voting election where generally all or most members of a given political body are chosen. These are usually held for a nation, state, or territory's primary legislative body, and are different from by-elections (only one electorate goes to election). In most systems, a general election is a regularly scheduled election where both a head of government (such as president or prime minister), and either "a class" or all members of a legislature are elected at the same time. Occasionally, dates for general elections may align with dates of elections within different administrative divisions, such as a local election.