Mike Mansfield

Mike Mansfield

Democrat · Montana · Senate

83 years in office

Quylt Score

429
Primary Score
|
??
Party Line

Score Breakdown

Legislative Output35% of score
Laws Enacted0 bills signed into law
515%
Bills Advanced109 of 196 bills out of committee
10012%
Federal Funding Secured$3432552M in federal obligations in district (119th Congress)
1008%
Engagement20% of score
Roll Call Attendance
Pending15%
Committee Hearing ParticipationCommittee assignments not yet available
205%
Collaboration15% of score
Bipartisan Cosponsoring5 of 20 cosponsored bills cross-party
4210%
Cross-Aisle Co-Authored Bills5 of 15 sponsored bills have cross-party cosponsors
1005%
Position & Influence20% of score
Leadership RoleNo leadership role
010%
Committee SeniorityNo committee assignments
1010%
Qualifications & Integrity10% of score
Education & CredentialsNo degree listed
405%
Ethics RecordNo formal ethics violations on record
505%

Last updated: April 29, 2026

Reflects official Senate/House Ethics Committee records. Recent actions may not yet be reflected.

Quylt Scores update as official government data becomes available. Ethics records may lag 30–90 days from official committee publication.

Sponsored Legislation (196)

S 4154A bill to amend the Act of December 27, 1950.

Introduced 1974-10-17 · Referred to Senate Committee on Commerce.

Agriculture and Food

S 4174Economic Stabilization Act

Introduced 1974-11-20 · Referred to Senate Committee on Banking, Housing and Urban Affairs.

Economics and Public Finance

S 4056A bill for the relief of Sokhom Hing.

Introduced 1974-09-30 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 4039Reconstruction Finance Corporation Act

Introduced 1974-09-24 · Referred to Senate Committee on Banking, Housing and Urban Affairs.

Finance and Financial Sector

S 3600Wages Adjustment Act

Introduced 1974-06-07 · Referred to Senate Committee on Labor and Public Welfare.

Labor and Employment

S 3706A bill for the relief of Janice Elaine Groves and her daughter, Anna Groves.

Introduced 1974-06-27 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 3523Temporary National Commission on Supplies and Shortages Act

Introduced 1974-05-22 · Referred to House Committee on Banking and Currency.

Public Lands and Natural Resources

S 3411First American Museum Act

Introduced 1974-05-01 · Referred to Senate Committee on Public Works.

Arts, Culture, Religion

S 3285A bill to extend most-favored-nation treatment to products of the Peoples Republic of China.

Introduced 1974-04-02 · Referred to Senate Committee on Finance.

International Affairs

S 2515A bill for the relief of the Confederated Salish and Kootenai Tribes of the Flathead Reservation, Mont.

Introduced 1973-10-02 · Referred to Senate Committee on Interior and Insular Affairs.

S 2514A bill for the relief of Hernando O. Macalalad.

Introduced 1973-10-02 · Referred to Senate Committee on Judiciary.

Private Legislation

S 2284A bill to provide for the issuance of a special postage stamp in commemoration of the life and work of Jeanette Rankin.

Introduced 1973-07-30 · Referred to Senate Committee on Post Office and Civil Service.

Government Operations and Politics

S 2264A bill to provide civil service retirement credit for certain language instructors of the Foreign Service Institute, Department of State.

Introduced 1973-07-26 · Referred to House Committee on Foreign Affairs.

Government Operations and Politics

S 2098A bill for the relief of Antonio O. Sales and his wife Emma Sales.

Introduced 1973-06-28 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 1848A bill for the relief of Mrs. Lucy Locke.

Introduced 1973-05-21 · Referred to House Committee on the Judiciary.

Private Legislation

S 1754A bill for the relief of certain named individuals.

Introduced 1973-05-09 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 1755A bill for the relief of the Mondakota Gas Co.

Introduced 1973-05-09 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 1357A bill for the relief of Mary Red Head.

Introduced 1973-03-26 · Private Law 93-104.

Private Legislation

S 837A bill to amend the Foreign Assistance Act of 1961.

Introduced 1973-02-08 · Laid on Table in Senate.

International Affairs

S 480A bill to amend section 318 of the Communications Act of 1934.

Introduced 1973-01-23 · Referred to Senate Committee on Commerce.

Government Operations and Politics

S 300Victims of Crime Act

Introduced 1973-01-11 · Referred to House Committee on Judiciary.

Crime and Law Enforcement

S 240A bill for the relief of Mrs. Wanda Martens.

Introduced 1973-01-06 · Referred to House Committee on the Judiciary.

Private Legislation

S 244A bill for the relief of Josefina Gonzales Batoon.

Introduced 1973-01-06 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 242A bill for the relief of Hong-To Lam and his wife, May-Fung Shum Lam.

Introduced 1973-01-06 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 241A bill for the relief of Basile Christopoulos.

Introduced 1973-01-06 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 237A bill to authorize the Secretary of the Interior to convey certain lands to August Sobotka and Joseph J. Tomalino of Intake, Montana.

Introduced 1973-01-06 · Referred to Senate Committee on Interior and Insular Affairs.

Private Legislation

S 243A bill for the relief of Roberto De Lamonica.

Introduced 1973-01-06 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 239A bill for the relief of Loretto B. Fitzgerald.

Introduced 1973-01-06 · Reported to House from the Committee on the Judiciary with amendment, H. Rept. 93-1331.

Private Legislation

SJRES 104Joint resolution providing for the designation and adoption of the American marigold as the national floral emblem of the United States.

Introduced 1973-05-03 · Referred to Senate Committee on Judiciary.

Government Operations and Politics

SRES 308Permission to appear as a witness in District Court in Oklahoma.

Introduced 1974-04-10 · Measure passed Senate.

Private Legislation

SRES 399Resolution urging full public access to information regarding the Watergate investigation.

Introduced 1974-09-11 · Measure passed Senate, amended.

Government Operations and Politics

SRES 199A resolution continuing certain employees on the Secretary of the Senate's payroll.

Introduced 1973-11-09 · Measure passed Senate.

Government Operations and Politics

SRES 179A resolution deploring the outbreak of hostilities in the Middle East.

Introduced 1973-10-08 · Measure passed Senate.

International Affairs

SRES 24A resolution relative to the death of Lyndon B. Johnson, a former President of the United States.

Introduced 1973-01-23 · Measure passed Senate.

Government Operations and Politics

SRES 12A resolution naming the majority party's membership on committees in the Senate.

Introduced 1973-01-04 · Measure repassed Senate, amended.

Congress

SRES 10A resolution modifying the Standing Rules of the Senate.

Introduced 1973-01-04 · Measure repassed Senate, amended.

Congress

SCONRES 62A concurrent resolution providing for the adjournment of the Congress.

Introduced 1973-12-21 · By unanimous consent Senate vitiated its action of 12/21/73.

Congress

S 3800Victims of Crime Act

Introduced 1976-09-10 · Placed on calendar in Senate.

Crime and Law Enforcement

S 3747A bill to eliminate a restriction relating to certain lands granted to the State of Montana.

Introduced 1976-08-10 · Referred to Senate Committee on Interior and Insular Affairs.

Public Lands and Natural Resources

S 3654A bill for the relief of the family of Zohair Moghrabi.

Introduced 1976-07-02 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 3594A bill to authorize appropriations for the repair of highways in the States of Montana and Kentucky.

Introduced 1976-06-21 · Referred to Senate Committee on Public Works.

Transportation and Public Works

S 3556An Act for the relief of Marciano Santiago and his wife, Eleanaor L. Santiago.

Introduced 1976-06-11 · Private Law 94-134.

Private Legislation

S 3315A bill for the relief of Sister Lina Afinidad.

Introduced 1976-04-14 · Referred to House Committee on the Judiciary.

Private Legislation

S 3314A bill for the relief of Sister Isidaria Avaricio.

Introduced 1976-04-14 · Referred to House Committee on the Judiciary.

Private Legislation

S 3313A bill for the relief of Sister Maria Lucila Santos.

Introduced 1976-04-14 · Referred to House Committee on the Judiciary.

Private Legislation

S 2959A bill for the relief of Kelvin Siu-Min Chen.

Introduced 1976-02-17 · Referred to House Committee on the Judiciary.

Private Legislation

S 2958A bill for the relief of Aridio Arturo Sanchez, his wife, Teresa Sanchez, and their daughter, Gabriela Viviana Sanchez.

Introduced 1976-02-17 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 2616A bill for the relief of Maria E. Boale.

Introduced 1975-11-05 · Referred to Senate Committee on Post Office and Civil Service.

Private Legislation

S 1699A bill for the relief of Mrs. Hope Namgyal.

Introduced 1975-05-12 · Private Law 94-52.

Private Legislation

S 1399Victims of Crime Act

Introduced 1975-04-10 · Referred to Senate Committee on the Judiciary.

Executive reorganization

S 842A bill for the relief of the Mondakota Gas Co.

Introduced 1975-02-26 · Referred to House Committee on the Judiciary.

Private Legislation

S 806A bill to provide for the issuance of a special postage stamp in commemoration of the life and work of Jeannette Rankin.

Introduced 1975-02-24 · Referred to Senate Committee on Post Office and Civil Service.

Postal service

S 744MHD (Magnetohydrodynamics) Research, Development, and Demonstration Act

Introduced 1975-02-19 · Referred to Senate Committee on Interior and Insular Affairs.

Power resources

S 256A bill for the relief of Hernando O. Macalalad.

Introduced 1975-01-21 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 260A bill for the relief of Basile Christopoulos.

Introduced 1975-01-21 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 259A bill for the relief of Antonio O. Sales and his wife, Emma Sales.

Introduced 1975-01-21 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 252A bill to authorize the Secretary of the Interior to convey certain lands to August Sobotka and Joseph J. Tomalino of Intake, Mont.

Introduced 1975-01-21 · Referred to Senate Committee on Interior and Insular Affairs.

Private Legislation

S 254A bill for the relief of Hong-To Lam and his wife, May-Fung Shum Lam.

Introduced 1975-01-21 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 258A bill for the relief of Mrs. Lucy Locke.

Introduced 1975-01-21 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 257A bill for the relief of Josefina Gonzales Batoon.

Introduced 1975-01-21 · Referred to Senate Committee on the Judiciary.

Private Legislation

S 253A bill for the relief of Janice Elaine Groves and her daughter, Anna Groves.

Introduced 1975-01-21 · Referred to House Committee on the Judiciary.

Private Legislation

SJRES 27A joint resolution to amend the Defense Production Act of 1950.

Introduced 1975-02-05 · Referred to House Committee on Banking, Currency and Housing.

Armed Forces and National Security

SRES 546A resolution relating to the consideration of S. 3800.

Introduced 1976-09-15 · Measure passed Senate.

Congress

SRES 523A resolution authorizing Senate study of U.S. security and foreign policy matters.

Introduced 1976-08-26 · Measure reconsidered and repassed in Senate with amendment.

International Affairs

SRES 463A resolution relating to expenses of defending a civil action.

Introduced 1976-06-11 · Measure passed Senate, amended, roll call #514 (56-20).

Congress

SRES 518A resolution expressing sympathy and support to Republic of the Philippines.

Introduced 1976-08-23 · Measure passed Senate.

International Affairs

SRES 446A resolution providing for meeting of the Senate in the Old Chamber.

Introduced 1976-05-12 · Measure passed Senate.

Congress

SRES 525Designation of the Philip A. Hart Office Building.

Introduced 1976-08-27 · Measure passed Senate, amended.

Government Operations and Politics

SRES 339A resolution relating to thanks of the Senate to the Vice President.

Introduced 1975-12-19 · Measure passed Senate.

Government Operations and Politics

SRES 259A resolution assigning Senator Durkin to various committees.

Introduced 1975-09-19 · Measure passed Senate.

Congress

SRES 208Resolution to authorize the printing of "Enactment of a Law."

Introduced 1975-07-15 · Measure passed Senate.

Printing

SRES 247A resolution authorizing certain payments to John A. Durkin and Louis C. Wyman.

Introduced 1975-09-17 · Measure passed Senate.

Contested elections

SRES 160A resolution disapproving construction projects on the island of Diego Garcia.

Introduced 1975-05-19 · Measure failed of passage in Senate, roll call #340 (43-53).

Public works

SRES 164A resolution relating to the opening of the restored old Supreme Court Chamber.

Introduced 1975-05-21 · Measure passed Senate.

Public Lands and Natural Resources

SRES 257A resolution amending Rule XXV of the Standing Rules of the Senate.

Introduced 1975-09-19 · Measure passed Senate.

Congress

SRES 261A resolution concerning committee assignments.

Introduced 1975-09-19 · Measure passed Senate.

Congress

SRES 46A resolution concerning the referral of proposed legislation and other matters to standing committees.

Introduced 1975-01-30 · Referred to Senate Committee on Rules and Administration.

Congress

SCONRES 126A concurrent resolution authorizing additional printing.

Introduced 1976-06-25 · Measure passed House.

Government publications

SCONRES 71Concurrent resolution to correct the enrollment of S. 1542.

Introduced 1975-10-29 · Measure passed House.

Congress

SCONRES 35A concurrent resolution approving an agreement between the United States and Romania.

Introduced 1975-04-25 · Measure passed House in lieu of H.Con.Res. 252, roll call #439 (355-41).

International Affairs

SCONRES 81A concurrent resolution providing for the adjournment of Congress.

Introduced 1975-12-19 · Measure indefinitely postponed in Senate, H.Con.Res. 518 passed in lieu.

Congress