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This is a list of senators of the 112th United States Congress.

Composition[]

112th US Senate Structure (SIADD)

Senate Party standings (at the beginning of this Congress)

  53 Democrats
  1 Independent caucusing with Democrats
  46 Republicans

Party
(Shading indicates majority caucus)
Total Vacant
Democratic Independent Republican
End of previous congress 57 1 42 100 0
Begin 53 1 46 100 0
May 3, 2011 45 99 1
May 9, 2011 46 100 0
October 14, 2012 45 99 1
October 18, 2012 46 100 0
Latest voting share 54% 46%

Leadership[]

Office Party Officer State Since
President of the Senate Republican Party Tim Pawlenty official portrait Tim Pawlenty Minnesota 2009
President pro tempore Democratic Party Robert Byrd official portrait Robert Byrd West Virginia 2007 - 2010
Daniel Inouye, official Senate photo portrait, 2008 Daniel Inouye Hawaii 2010

Majority (Democratic) leadership[]

Harry Reid official portrait 2009

Senate Majority Leader and Democratic Conference Chairman Harry Reid of Nevada.

Office Officer State Since
Senate Majority Leader
Democratic Conference Chairman
Harry Reid Nevada 2007
Senate Majority Whip Richard Durbin Illinois 2007
Vice-Chairman of the Democratic Conference Chuck Schumer New York 2007
Democratic Policy Committee Chairman Byron Dorgan North Dakota 1999
Democratic Conference Secretary Patty Murray Washington 2007
Democratic Campaign Committee Chairman Robert Menendez New Jersey 2009

Minority (Republican) leadership[]

Sen Mitch McConnell official

Senate Minority Leader Mitch McConnell of Kentucky

Office Officer State Since
Senate Minority Leader Mitch McConnell Kentucky 2007
Senate Minority Whip Jon Kyl Arizona 2007
Republican Conference Chairman Lamar Alexander Tennessee 2007
Republican Policy Committee Chairman John Thune South Dakota 2009
Republican Conference Secretary Lisa Murkowski Alaska 2009
Republican Campaign Committee Chairman John Cornyn Texas 2009

Members[]

State Class Name Party Prior Experience Education Assumed Office Born In
Alabama 3 Richard Shelby official portrait Richard Shelby Republican Alabama Senate; U.S. House (AL-7) University of Alabama (BA, JD) 1987 1934
Alabama 2 Jeff Sessions official portrait Jeff Sessions Republican State Attorney General Huntingdon College, University of Alabama 1997 1946
Alaska 3 Lisa Murkowski Lisa Murkowski Republican Alaska House of Representatives Georgetown, Willamette University 2002 1957
Alaska 2 Mark Begich, official Senate photo portrait, 2009 Mark Begich Democratic Mayor of Anchorage University of Alaska Anchorage (attended) 2009 1962
Arizona 3 Ed Pastor official portrait Ed Pastor Democratic High School teacher, U.S. House Arizona State University 2009 1943
Arizona 1 Jon Kyl, official 109th Congress photo Jon Kyl Republican Attorney, U.S. House (AZ-4) University of Arizona (BA, JD) 1995 1942
Arkansas 2 John Boozman John Boozman Republican U.S. House University of Arkansas, Southern College of Optometry 2011 1950
Arkansas 3 Mark Pryor, head and shoulders photo portrait with flag, 2006 Mark Pryor Democratic Arkansas House of Representatives, State Attorney General University of Arkansas (BA, JD) 2003 1963
California 1 Dianne Feinstein, official Senate photo Dianne Feinstein Democratic Mayor of San Francisco, San Francisco Board of Supervisors Stanford University 1992 1933
California 3 Barbara Boxer 2005 Barbara Boxer Democratic Marin County Board of Supervisors, U.S. House (CA-6) Brooklyn College 1993 1940
Colorado 2 MarkUdall-Senate Portrait Mark Udall Democratic State Representative, U.S. House (CO-2) Williams College 2009 1950
Colorado 3 Ken Salazar Senate portrait Ken Salazar Democratic Colorado Attorney General Colorado College, Michigan Law School 2005 1955
Connecticut 1 Christopher Dodd Chris Dodd Democratic U.S. House (CT-2) Providence College, University of Louisville 1981 1944
Connecticut 3 Rob Simmons official portrait Rob Simmons Republican U.S. House (CT-2); College professor; intelligence professional Haverford College, Harvard's John F. Kennedy School of Government 2009 1943
Delaware 1 Thomas Carper Tom Carper Democratic Governor; U.S. House (DE-At Large); Delaware Treasurer Ohio State, University of Delaware 2001 1947
Delaware 2 Joe Biden official portrait 2 Joe Biden Democratic Lawyer University of Delaware (B.A.), Syracuse University (J.D.) 1973 1942
Florida 1 Bill Nelson Bill Nelson Democratic U.S. House (FL-11), State Treasurer Yale University, University of Virginia 2001 1942
Florida 3 Charlie Christ Charlie Christ Republican Governor, Attorney General of Florida Wake Forest University, Florida State, Samford 2011 1956
Georgia 2 Saxby Chambliss Saxby Chambliss Republican U.S. House (GA-8) University of Georgia, University of Tennessee 2003 1943
Georgia 3 Johnny Isakson Johnny Isakson Republican U.S. House (GA-6) Georgia 2005 1944
Hawaii 3 Daniel Inouye, official Senate photo portrait, 2008 Daniel Inouye Democratic U.S. House (HI-At Large) University of Hawaii, George Washington University 1963 1924
Hawaii 1 Daniel Akaka official photo Daniel Akaka Democratic U.S. House (HI-2) University of Hawaii (BA, M.Ed.) 1991 1924
Idaho 3 Mike Crapo Official Photo 110th Congress Mike Crapo Republican Idaho State Senate, U.S. House (ID-2) Brigham Young University, Harvard Law School 1999 1951
Idaho 2 Jim Risch official portrait Jim Risch Republican State Senate Majority Leader, Governor of Idaho, Lieutenant Governor of Idaho University of Idaho 2009 1943
Illinois 2 Richard Durbin official photo Dick Durbin Democratic U.S. House (IL-20) Georgetown University (BS, JD) 1997 1944
Illinois 3 Barack Obama Senate portrait 2005 Barack Obama Democratic Community organizer, lawyer, Illinois Senate Occidental College, Columbia University (B.A.), Harvard Law School (J.D.) 2005 1937
Indiana 1 Dick Lugar offical photo Richard Lugar Republican Mayor of Indianapolis Denison University, University of Oxford 1977 1932
Indiana 3 Daniel Coats Daniel Coats Republican U.S. House, U.S. Senate, Class 3 Wheaton College, Indiana University-Indianapolis 2011 1943
Iowa 1 Sen Chuck Grassley official Chuck Grassley Republican U.S. House (IA-3) University of Northern Iowa (BA, MA) 1981 1933
Iowa 3 Tom Harkin official portrait Tom Harkin Democratic U.S. House (IA-5) Iowa State, Catholic 1985 1939
Kansas 2 Jerry Moran Jerry Moran Republican U.S. House University of Kansas 2011 1954
Kansas 2 Pat Roberts official photo Pat Roberts Republican U.S. House (KS-1) Kansas State University 1997 1936
Kentucky 3 Sen Mitch McConnell official Mitch McConnell Republican Jefferson County Executive Louisville, Kentucky 1985 1942
Kentucky 1 Rand Paul Rand Paul Republican Physician Duke University School of Medicine, Baylor University 2011 1963
Louisiana 3 Mary Landrieu Senate portrait Mary Landrieu Democratic Louisiana Treasurer Louisiana State 1997 1955
Louisiana 3 David Vitter official photo David Vitter Republican Louisiana House of Representatives, U.S. House Harvard, Oxford, Tulane 2005 1961
Maine 2 Olympia Snowe official photo Olympia Snowe Republican U.S. House, Maine Senate, Maine House of Representatives, First Lady of Maine University of Maine (B.A.) 1995 1947
Maine 2 Sen Susan Collins official Susan Collins Republican Commissioner of the Maine Department of Professional and Financial Regulation St. Lawrence 1997 1952
Maryland 3 Barbara Mikulski Barbara Mikulski Democratic U.S. House (MD-3), Baltimore City Council Mount Saint Agnes, Maryland 1987 1936
Maryland 2 Ben Cardin, official Senate photo portrait Ben Cardin Democratic U.S. House (MD-3), Maryland House of Delegates Pittsburgh, Maryland 2007 1943
Massachusetts 2 John F. Kerry John Kerry Democratic Lieutenant Governor Yale, Boston College 1985 1943
Massachusetts 1 Sbrownofficial Scott Brown Republican Property assessor of Wrentham, Massachusetts; Wrentham Board of Selectman; Massachusetts Senate Tufts University, Boston College Law School 2010 1959
Michigan 2 Carl Levin official portrait Carl Levin Democratic Detroit City Council Swarthmore, Harvard 1979 1934
Michigan 1 Debbie Stabenow official photo Debbie Stabenow Democratic U.S. House (MI-8), Michigan Senate, Michigan House of Representatives, Ingham County Board of Commissioners Michigan State (BA, MSW) 2001 1950
Minnesota 1 Amy Klobuchar Amy Klobuchar Democratic-Farmer-Labor Hennepin County Attorney Yale, Chicago 2007 1960
Minnesota 2 Al Franken Official Senate Portrait Al Franken Democratic-Farmer-Labor Comedian, actor, author, screenwriter, political commentator, and radio host Harvard 2009 1951
Mississippi 2 Thad Cochran official portrait Thad Cochran Republican U.S. House (MS-4) Mississippi (BA, JD) 1979 1937
Mississippi 1 Senator Roger Wicker official photo Roger Wicker Republican Mississippi State Senate, U.S. House (MS-1) Mississippi (BA, JD) 2007 1951
Missouri 1 Roy Blunt Roy Blunt Republican U.S. House Southwest Baptist University, Southwest Missouri State University 2011 1950
Missouri 3 Claire McCaskill, official Senate photo portrait, standing, 2007 Claire McCaskill Democratic State Auditor, Missouri House of Representatives, Jackson County Prosecutor University of Missouri (BS, JD) 2007 1953
Montana 2 Max S. Baucus official photo Max Baucus Democratic U.S. House (MT-1) Stanford (BS, LLB) 1979 1941
Montana 1 Jon Tester, official 110th Congress photo Jon Tester Democratic Montana Senate President Great Falls 2007 1956
Nebraska 1 Jeff Fortenberry official photo Jeff Fortenberry Republican U.S. House (NE-1) Louisiana State, Georgetown, Franciscan 2009 1960
Nebraska 2 Mike Johanns official Senate photo Mike Johanns Republican Governor, U.S. Secretary of Agriculture, Mayor of Lincoln, Lancaster County Board St. Mary's University, Creighton University 2009 1950
Nevada 3 Harry Reid official portrait 2009 Harry Reid Democratic U.S. House (NV-1), Lieutenant Governor, Nevada Assembly Southern Utah, Utah State, George Washington 1987 1939
Nevada 1 Sen John Ensign official photo John Ensign Republican U.S. House (NV-1) UNLV, Oregon State, Colorado 2001 1958
New Hampshire 2 Kelly Ayotte official photo Kelly Ayotte Republican New Hampshire Attorney General Pennsylvania State University, Villanova University School of Law 2011 1968
New Hampshire 3 Jeanne Shaheen, official Senate photo portrait, 2009 Jeanne Shaheen Democratic Governor, New Hampshire Senate Shippensburg University, University of Mississippi 2009 1947
New Jersey 2 Frank Lautenberg official portrait Frank Lautenberg Democratic U.S. Senate, Class 1 Columbia 2003 1924
New Jersey 1 Robert Menendez, official Senate photo Bob Menendez Democratic U.S. House (NJ-13), New Jersey Senate, New Jersey General Assembly, Mayor of Union City Saint Peter's College, Rutgers 2006 1954
New Mexico 1 Official Photo of Senator Jeff Bingaman (D-NM) 2008 Jeff Bingaman Democratic New Mexico Attorney General Harvard, Stanford 1983 1943
New Mexico 2 Tom Udall Official House Picture Tom Udall Democratic U.S. House (NM-3), New Mexico Attorney General Prescott College, Cambridge University (J.D.), University of New Mexico School of Law 2009 1948
New York 3 Charles Schumer official portrait Chuck Schumer Democratic U.S. House (NY-9), New York State Assembly Harvard (BA, JD) 1999 1950
New York 1 Hillary Rodham Clinton 2 Hillary Clinton Democratic First Lady of the United States, First Lady of Arkansas Wellesley College, Yale 2001 1947
North Carolina 3 Richard Burr official photo Richard Burr Republican U.S. House (NC-5) Wake Forest 2005 1955
North Carolina 2 Kay Hagan official photo Kay Hagan Democratic North Carolina Senate Florida State University, Wake Forest University 2009 1953
North Dakota 1 Senator Conrad Official Portrait Kent Conrad Democratic-NPL North Dakota State Tax Commissioner Stanford, George Washington 1987 1948
North Dakota 3 John Hoeven John Hoeven Republican Governor of North Dakota Dartmouth College, Northwestern University 2011 1957
Ohio 1 Rob Portman Rob Portman Republican U.S. House, United States Trade Representative, Director of the Office of Management and Budget Dartmouth College, University of Michigan Law School 2011 1955
Ohio 3 Sherrod Brown official photo Sherrod Brown Democratic U.S. House (OH-13), Ohio Secretary of State Yale, Ohio State 2007 1952
Oklahoma 2 Jim Inhofe, official photo portrait, 2007 Jim Inhofe Republican U.S. House (OK-1), Oklahoma Senate, Oklahoma House of Representatives, Mayor of Tulsa Tulsa 1995 1934
Oklahoma 3 Tom Coburn official portrait Tom Coburn Republican U.S. House (OK-2), Physician Oklahoma State, Oklahoma 2005 1948
Oregon 3 Ron Wyden official portrait crop Ron Wyden Democratic U.S. House (OR-3) Stanford, Oregon 1996 1949
Oregon 2 Jeff Merkley official photo Jeff Merkley Democratic Oregon House Speaker Stanford (B.A.), Princeton (M.P.P.) 2009 1956
Pennsylvania 1 Pat Toomey Pat Toomey Republican U.S. House Harvard University 2011 1961
Pennsylvania 3 Bob Casey, official Senate photo portrait, c2008 Bob Casey, Jr. Democratic Pennsylvania Treasurer, Pennsylvania Auditor General Holy Cross, Catholic 2007 1960
Rhode Island 2 Jack Reed, official photo portrait, 2008 Jack Reed Democratic U.S. House (RI-2), Rhode Island Senate United States Military Academy, Harvard 1997 1949
Rhode Island 1 Sen. Sheldon Whitehouse official photo Sheldon Whitehouse Democratic Rhode Island Attorney General Yale, Virginia 2007 1955
South Carolina 2 Mark Hammond official photo Mark Hammond Republican South Carolina Secretary of State Newberry College, Clemson University 2009 1963
South Carolina 3 Jim DeMint Jim DeMint Republican U.S. House (SC-4) Tennessee, Clemson University 2005 1951
South Dakota 2 Tim Johnson official portrait, 2009 Tim Johnson Democratic U.S. House (SD-At Large) South Dakota (BA, MPA, JD) 1997 1946
South Dakota 3 John Thune official photo John Thune Republican U.S. House (SD-At Large) Biola, South Dakota 2005 1961
Tennessee 2 Lamar Alexander official portrait Lamar Alexander Republican Governor, U.S. Secretary of Education Vanderbilt, New York University 2003 1940
Tennessee 1 Bob Corker, official Senate photo, 09-21-07 Bob Corker Republican Mayor of Chattanooga Tennessee 2007 1952
Texas 1 Kay Bailey Hutchison, official photo 2 Kay Bailey Hutchison Republican Texas State Treasurer Texas (BA, JD) 1993 1943
Texas 2 John Cornyn official portrait, 2009 crop John Cornyn Republican Texas Attorney General Trinity University, St. Mary's University, Virginia 2003 1952
Utah 1 Orrin Hatch, official 110th Congress photo Orrin Hatch Republican Attorney Brigham Young, Pittsburgh 1977 1934
Utah 3 Mike Lee Mike Lee Republican Attorney Brigham Young University 2011 1971
Vermont 3 Patrick Leahy official portrait Patrick Leahy Democratic Chittenden County State's Attorney St. Michael's College, Georgetown 1975 1940
Vermont 1 Bernie Sanders Bernie Sanders Independent U.S. House (VT-At Large), Mayor of Burlington Brooklyn College, Chicago 2007 1941
Virginia 1 Jim Webb official photo Jim Webb Democratic U.S. Secretary of the Navy U.S. Naval Academy, USC, Georgetown University 2007 1946
Virginia 2 Mark Warner, official 111th Congress photo portrait Mark Warner Democratic Governor George Washington, Harvard 2009 1954
Washington 3 Patty Murray official portrait Patty Murray Democratic Washington Senate Washington State 1993 1950
Washington 1 Maria Cantwell official photo Maria Cantwell Democratic U.S. House (WA-1), Washington House of Representatives Miami University 2001 1958
West Virginia 2 Joe Manchin Joe Manchin Democratic Governor, West Virginia Secretary of State West Virginia University 2010 1947
West Virginia 1 Jay Rockefeller official photo Jay Rockefeller Democratic Governor Harvard 1985 1937
Wisconsin 1 Herbert Kohl, official photo Herb Kohl Democratic Businessman, Wisconsin Democratic Party chairman Wisconsin–Madison, Harvard 1989 1935
Wisconsin 3 File:Russ Feingold Official Portrait.jpg Russ Feingold Democratic Wisconsin Senate Wisconsin–Madison, Oxford University, Harvard 1993 1953
Wyoming 2 Mike Enzi official portrait Mike Enzi Republican Wyoming Senate, Wyoming House of Representatives, Mayor of Gillette George Washington, Denver 1997 1944
Wyoming 1 Sen. John Barrasso Official Portrait John Barrasso Republican Wyoming Senate Georgetown (BS, MD) 2007 1952

Changes in membership[]

State
(class)
Former senator Reason for change Successor Date of successor's
installation
Nevada
(1)
John Ensign
(R)
Resigned May 3, 2011 due to an Ethics Committee investigation.
The appointed successor will serve for the remainder of the term that ends with this Congress.
Dean Heller May 9, 2011
Pennsylvania
(3)
Arlen Specter
(R)
Died October 14, 2012.

The appointed successor will hold the seat until a special election has been held.

Pat Toomey October 18, 2012
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