A caucus is a meeting of supporters or members of a specific political party or movement. The term originated in the United States, but has spread to Australia, Canada, New Zealand, South Africa and Nepal. As the use of the term has been expanded, the exact definition has come to vary among political cultures.
Origin of the term
The origin of the word caucus is debated, but it is generally agreed that it first came into use in the British colonies of North America.
A February 1763 entry in the diary of John Adams of Braintree, Massachusetts, is one of the earliest appearances of Caucas, already with its modern connotations of a "smoke-filled room" where candidates for public election are pre-selected in private:
This day learned that the Caucas Clubb meets at certain Times in the Garret of Tom Daws, the Adjutant of the Boston Regiment. He has a large House, and he has a moveable Partition in his Garrett, which he takes down and the whole Clubb meets in one Room. There they smoke tobacco till you cannot see from one End of the Garrett to the other. There they drink Phlip I suppose, and there they choose a Moderator, who puts Questions to the Vote regularly, and select Men, Assessors, Collectors, Wardens, Fire Wards, and Representatives are Regularly chosen before they are chosen in the Town...
- The Origin of the "Caucus"
The presidential nominating convention is a modern institution. In the early days of the Republic a very different method was pursued in order to place the candidates for the highest office in the land before the people.
In the first place, as to the origin of the "caucus." In the early part of the eighteenth century a number of caulkers connected with the shipping business in the North End of Boston held a meeting for consultation. That meeting was the germ of the political caucuses which have formed so prominent a feature of our government ever since its organization.
No wholly satisfactory etymology has been documented. James Hammond Trumbull suggested to the American Philological Association that it comes from an Algonquian word for "counsel", 'cau´-cau-as´u'. The word might also derive from the Algonquian cawaassough, meaning an advisor, talker, or orator. This explanation was favoured by Charles Dudley Warner. The American Heritage Dictionary suggests that it possibly derived from medieval Latin caucus, meaning "drinking vessel", such as might have been used for the flip drunk at Caucus Club of colonial Boston.
An analogical Latin-type plural "cauci" is occasionally used.
In alternative dispute resolution
The term caucus is also used in mediation, facilitation and other forms of alternate dispute resolution to describe circumstances wherein, rather than meeting at a common table, the disputants retreat to a more private setting to process information, agree on negotiation strategy, confer privately with counsel and/or with the mediator, or simply gain "breathing room" after the often emotionally difficult interactions that can occur in the common area where all parties are present. The degree to which caucuses are used can be a key defining element, and often an identifier, of the mediation model being used. For example, "facilitative mediation" tends to discourage the use of caucuses and tries to keep the parties talking at a single table, while "evaluative mediation" may allow parties to separate more often and rely on the mediator to shuttle information and offers back and forth.
In the United States
In United States politics and government, caucus has several distinct but related meanings. Members of a political party or subgroup may meet to coordinate members' actions, choose group policy, or nominate candidates for various offices.
Caucuses to select election candidates
There is no provision for the role of political parties in the United States Constitution. In the first two presidential elections, the Electoral College handled nominations and elections in 1789 and 1792 which selected George Washington. After that, Congressional party or a state legislature party caucus selected the party's presidential candidates. Nationally, these caucuses were replaced by the party convention starting in 1832 following the lead of the Anti-Masonic Party 1831 convention.
The term caucus is frequently used to discuss the procedures used by some states to select presidential nominees such as the Iowa caucuses, the first of the modern presidential election cycle, and the Texas caucuses. Since 1980 such caucuses have become, in the aggregate, an important component of the nomination process. Because such caucuses are infrequent and complex to organize, there is a practice version called a maucus, a portmanteau of mock caucus.
Until very recently Caucus was used instead of caucuses, for instance Colorado Caucus rather than Colorado caucuses. See the coverage of 2008 Iowa Caucus (not Iowa caucuses then.) 
Another meaning is a sub grouping of officials with shared affinities or ethnicities who convene, often but not always to advocate, agitate, lobby or to vote collectively, on policy. At the highest level, in Congress and many state legislatures, Democratic and Republican members organize themselves into a caucus (occasionally called a "conference"). There can be smaller caucuses in a legislative body, including those that are multi-partisan or even bicameral. Of the many Congressional caucuses, one of the best-known is the Congressional Black Caucus, a group of African-American members of Congress. Another prominent example is the Congressional Hispanic Caucus, whose members voice and advance issues affecting Hispanics in the United States, including Puerto Rico. In a different vein, the Congressional Internet Caucus is a bipartisan group of Members who wish to promote the growth and advancement of the Internet. Other congressional caucuses such as the Out of Iraq Caucus, are openly organized tendencies or political factions (within the House Democratic Caucus, in this case), and strive to achieve political goals, similar to a European "platform", but generally organized around a single issue.
In Commonwealth nations
The term is used in Australia, Canada, New Zealand and South Africa. However, when used in these countries, "caucus" is more often a collective term for all members of a party in Parliament, usually called a parliamentary group, rather than a word for a regular meeting of these Members of Parliament. Thus, the Australian Federal Parliamentary Labor Party is commonly called "the Labor Caucus."
The word was introduced to Australia by King O'Malley, an American-born Labor member of the first federal Parliament in 1901; it presumably entered New Zealand politics at a similar time. In New Zealand, the term is used by all political parties, but in Australia, the term is used only by the Australian Labor Party. For the Australian Liberal, National and Green parties, the usual term is "party room", and for all parties in Ireland (not a Commonwealth country) and the UK, the usual term is "parliamentary party". In South Africa all parties use the term caucus.
In Canada, caucus refers to all members of a particular party in Parliament, including senators, or a provincial legislature. These members elect among themselves a caucus chair who presides over their meetings. This person is an important figure when the party is in opposition and an important link between cabinet and the backbench when the party is in government.
In a Westminster System, a party caucus can be quite powerful, as it can elect or dismiss the party's parliamentary leader. The caucus also determines some matters of policy, parliamentary tactics, and disciplinary measures against disobedient MPs. In some parties, the caucus also has the power to elect MPs to Cabinet when the party is in government. For example, this is traditionally so in the Australian Labor Party and the New Zealand Labour Party.
In conventions, where the membership from different parts of the organization may gather, each separate group within the organization may meet prior to the convention as a caucus. Each caucus may decide how the group would vote on various issues that may come up at the convention. Unless the votes are made binding, however, each delegate is still free to vote in any fashion.
- Edward Sylvester Ellis, et al., eds. Great Leaders and National Issues of 1896: containing the lives of the Republican and Democratic candidates for president and vice-president, biographical sketches of the leading men of all parties ... famous campaigns of the past, history of political parties, lives of our former presidents ..., Chapter I.
- J.L. Bell, ""Boston 1775: Colonial Boston Vocabulary: 'caucus,' part 2"
- Wilson, James (1999). The Earth Shall Weep. New York City, NY: Atlantic Monthly Press. pp. 104–105. ISBN 0-87113-730-5.
- The Story of Pocahontas", Project Gutenberg
- "caucus". American Heritage Dictionary (4th ed.). Boston, MA: Houghton Mifflin Company. 2000.
- Further details in Julie MacFarlane, Dispute Resolution: Readings and Case Studies, 2003:356-62, excerpts from C. Moore, The Mediation Process, 2nd ed. 1996:319-26
- Shafer, Byron E, (1988). "Emergence of the Presidential The Nomination and the Convention". Bifurcated Politics: Evolution and Reform in the National Party Convention. Harvard University Press. p. 11. ISBN 0674072561. Retrieved February 1, 2016.
- Our View: Caucus turnout suggests change in Idaho politics" Idaho Statesman[dead link]
- "Final Caucus Results" Archived February 6, 2008 at the Wayback Machine
- Idaho Statesman[dead link]
- Idaho Caucus overflow[dead link]
- MileHighGayGuy: Colorado Stonewall Dems Maucus
- skepticalcommunity.com :: View topic – Maucus
- See, e.g., U.S. House of Representatives Democratic Caucus, U.S. House of Representatives Republican Conference; U.S. Senate Democratic Caucus; U.S. Senate Republican Conference; California State Senate Democratic Caucus
- Robert, Henry M.; et al. (2011). Robert's Rules of Order Newly Revised (11th ed.). Philadelphia, PA: Da Capo Press. pp. 605–606. ISBN 978-0-306-82020-5.
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|Look up caucus in Wiktionary, the free dictionary.|
|Wikisource has the text of the 1905 New International Encyclopedia article Caucus.|