Minor parties have introduced useful new practices, such as nominating convention; they have played "spoiler rules" in contests in which the major parties are equally matched and most of all they have called voters' attention to problems that the major parties have failed to address.

A district or local party committee is the organization that by virtue of the bylaws of a political party or by the operation of state law is part of the official party structure.

In the United States, an electoral precinct or voting district is the smallest unit into which electoral districts are divided. A larger geographic unit such as a county, township, or city council district is typically subdivided into precincts and each address is assigned to a specific precinct.

A local party organization is an organization that is responsible for a political party's activities below the state level (such as city, county or district level) but is not registered with the Federal Election Commission (FEC) as a district or local party committee.

There are four political groups at the Local Government Association (LGA) – Conservative, Labour, Liberal Democrat and Independent – each supported by a group office.

Political parties usually include a party leader, who has primary responsibility for the activities of the party; party executives, who may select the leader and who perform administrative and organizational tasks; and party members, who may volunteer to help the party, donate money to it, and vote for its candidates.

A political party consists of three separate components: the party organization, the party in government, and the party in the electorate. -Parties help to informally structure elections by running candidates for office under specific party labels.