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United States Senate
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U.S. Senate chamber The U.S. Capitol Building in Washington, D.C., with its white dome and neoclassical facade, stands behind a statue and landscaped grounds.
Black and white photo of eight women U.S. Senators sitting in a circle and talking in a formal room.
Hubert Humphrey's signature Andrew Johnson's impeachment trial in the Senate, 1868
A hand places a ballot in a box with an American flag in the background. Large text reads What's the point? with a blue arrow pointing to the ballot.
U.S. Senate (118th Congress) United States Senate: 118th Congress Discover how many women have served in the Senate. Senators Blanche Lincoln, Jean Carnahan, Susan Collins, Patty Murray, Hillary Rodham Clinton, Kay Bailey Hutchison, Barbara Mikulski, and Dianne Feinstein sit and talk together in a Capitol Hill office with coffee cups on a table.
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U.S. History Highlights: Part One

United States Senate: References & Edit History

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  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

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Article History

Type Description Contributor Date
Table updated. Oct 01, 2026
Updated table. Oct 01, 2026
Updated to include Darline Graham Nordone. Jul 14, 2026
Updated for the death of Lindsey Graham. Jul 13, 2026
Added cross-reference to Andy Kim. Jun 05, 2025
Link fixed. Feb 25, 2025
Link altered. Feb 25, 2025
Link added. Feb 25, 2025
Media added. Aug 09, 2024
Changed placement of media. Dec 07, 2023
Media added. Oct 18, 2023
Media added. Jul 19, 2023
Media added. Apr 27, 2023
Media added. Nov 17, 2022
Add new Web site: Official Site of the Congress of the United States. Sep 06, 2022
Cross-references and section titles added. May 22, 2020
Add new Web site: US Constitution and Government - US Senate Facts. Jan 31, 2019
Article title changed from "Senate" to "United States Senate." Oct 19, 2018
Article updated to mention reinterpretations in 2013 and 2017 of the Senate rule for invoking cloture. Oct 19, 2018
Add new Web site: Official Site of the United States Congress. Feb 22, 2018
Add new Web site: Official Site of the United States Congress. Feb 22, 2018
Added photograph of a visitor's ticket to the U.S. Senate chamber. Jan 12, 2012
Added information about party leadership and committee system. Jan 12, 2012
Added photograph of the Senate chambers. May 09, 2011
Changed "The table provides a list of U.S. senators in the 111th Congress" to "The table provides a list of current U.S. senators." Jan 05, 2011
Added photograph. Oct 12, 2010
Added new Web site: Official Site of the United States Senate. Oct 12, 2006
Added new Web site: Advisory Committee to the Congressional Internet Caucus. Sep 06, 2006
Article added to new online database. Jul 20, 1998
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