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A congressional caucus is a group of members of the United States Congress that meet to pursue common legislative objectives. Formally, caucuses are formed as congressional member organizations (CMOs) through the United States House of Representatives and the United States Senate and governed under the rules of these chambers. In addition to the term "caucus", they are sometimes called conferences (especially Republican ones), coalitions, study groups, task forces, or working groups.[1] Many other countries use the term parliamentary group; the Parliament of the United Kingdom has many all-party parliamentary groups.[2]

Party caucuses and conferences in the United States Congress

The largest caucuses are the party caucuses comprising all members of one house from one party (either the Democrats or the Republicans) in addition to any independent members who may caucus with either party. These are the House Democratic Caucus, House Republican Conference, Senate Democratic Caucus and Senate Republican Conference. The caucuses meet regularly in closed sessions for both the House of Representatives and the Senate to set legislative agendas, select committee members and chairs and hold elections to choose various floor leaders. They also oversee the four Hill committees, political party committees that work to elect members of their own party to Congress.

Ideological conferences

US House of Representatives Caucuses 2024
Democratic Party (212)
  NDC and CPC: 23 seats
  BDC and NDC: 5 seats
  Blue Dog Coalition: 5 seats
  Other Democrats: 36 seats
Vacant (6)
  Vacant (6)
Republican Party (217)
  Other Republicans: 14 seats
  RSC and Freedom Caucus: 17 seats[a]
  Freedom Caucus: 24 seats[a]
(Excluding Republican Governance Group)

Ideological congressional caucuses can represent a political party within a political party. In the United States two-party dominant political system, these congressional caucuses help congregate and advance the ideals of a more focused ideology within the two major relatively big tent political parties. Some caucuses are organized political factions with a common ideological orientation.[3] Most ideological caucuses are confined to the House of Representatives. The rosters of large caucuses are usually listed publicly. Members of Congress are not restricted to a single ideological caucus, creating overlaps between the organisations.

Racial and ethnic caucuses

Among the most visible caucuses are those composed of members sharing the same race or ethnic group. The most high profile of these represent people of color. The Congressional Black Caucus, Congressional Hispanic Caucus, and the Congressional Asian Pacific American Caucus also form the Congressional Tri Caucus when they sit together.

White Americans/European Americans are the only Racial ethnic group that doesn't have a caucus.

ERA Caucus

The ERA Caucus (Equal Rights Amendment Caucus) was formed March 28, 2023, by representatives Ayanna Pressley and Cori Bush to affirm the Equal Rights Amendment as the 28th amendment of the U.S. Constitution,[4] having met all requirements of Article V in 2020 with the ratification by the 38th state, Virginia.[5] The Caucus has quickly grown to be one of the largest in the U.S. House of Representatives, standing at 69 members in May 2023.

The ERA Caucus quickly showed their support of the ERA, marching on April 28, 2023 to the Senate in support of S.J. Res 4, the bill to affirm the ERA.[6]

LGBT+ caucus

The formation of the Congressional LGBT Equality Caucus was announced on June 4, 2008, by openly gay members of congress Tammy Baldwin and Barney Frank.[7][8] The mission of the caucus is to work for LGBT rights, the repeal of laws discriminatory against LGBT persons, the elimination of hate-motivated violence, and improved health and well-being for all persons, regardless of sexual orientation, gender identity, or gender expression.[9] The caucus serves as a resource for Members of Congress, their staffs, and the public on LGBT issues.[9]

The LGBT Equality Caucus admits any member who is willing to advance LGBT rights, regardless of their sexual identity or orientation; it has historically been co-chaired by every openly-LGBT member of the House. The caucus had 194 members, all of them Democrats, in the 118th United States Congress.

Interest group caucuses

The most common caucuses consist of members united as an interest group. These are often bipartisan (comprising both Democrats and Republicans) and bicameral (comprising both Representatives and Senators). Examples like the Congressional Bike Caucus works to promote cycling and the Senate Taiwan Caucus promotes strong relationships with Taiwan.


The House Committee on House Administration (HCHA) prescribes certain rules for Congressional Member Organizations (CMOs). Each Congress,[nb 1] CMOs must electronically register with the Committee on House Administration, providing the name of the caucus, a statement of purpose, the CMO officers and the employee[clarification needed] designated to work on issues related to the CMO. The HCHA rules include the following:

See also


  1. ^ Here, Congress refers to an elected set of Congresspersons spanning from one congressional election to the next. The 114th Congress lasted from January 3, 2015 to January 3, 2017.
  1. ^ a b The Freedom caucus does not publish its member roster and the actual count may therefore be higher.


  1. ^ "Congressional Member Organizations: Their Purpose and Activities, History, and Formation" (PDF). Congressional Research Service. January 26, 2017. Retrieved April 11, 2018.
  2. ^ "All-party Parliamentary Groups". BBC News. August 20, 2008. Retrieved April 11, 2018.
  3. ^ Hawkings, David (January 19, 2016). "The House's Ideology, in Seven Circles". Roll Call. Retrieved January 6, 2021.
  4. ^ Savery, Hunter. "New House caucus pushes for ratification of Equal Rights Amendment". Capital News Service. Retrieved May 26, 2023.
  5. ^ Pressley, Ayanna. "Pressley, Bush Launch First-Ever Congressional Equal Rights Amendment Caucus". Official Rep. Pressley website. Retrieved May 26, 2023.
  6. ^ Pressley, Ayanna. "Tweet of march to Senate on ERA". Twitter. Retrieved May 26, 2023.
  7. ^ "House Members Form LGBT Equality Caucus: Goal is Equality for Lesbian, Gay, Bisexual, Transgender (LGBT) Americans" (Press release). LGBT Equality Caucus. June 4, 2008. Archived from the original on December 11, 2012. Retrieved January 5, 2013.
  8. ^ "U.S. House Members Form First Congressional LGBT Equality Caucus", The Advocate, February 5, 2008, retrieved April 7, 2010
  9. ^ a b "Mission". LGBT Equality Caucus. June 12, 2014. Retrieved February 21, 2019.