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Brien McMahon

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Brien McMahon
NameBrien McMahon
CaptionUnited States Senator
StateConnecticut
Term startJanuary 3, 1945
Term endJuly 28, 1952
PredecessorJohn A. Danaher
SuccessorWilliam A. Purtell
Office1Assistant Attorney General
President1Franklin D. Roosevelt
Term start11935
Term end11939
Birth date6 October 1903
Birth placeNorwalk, Connecticut
Death date28 July 1952
Death placeWashington, D.C.
PartyDemocratic
SpouseRosemary Turner
Alma materFordham University, Yale Law School
OccupationLawyer, Politician

Brien McMahon was an influential American politician and legal figure who served as a United States Senator from Connecticut from 1945 until his death in 1952. A member of the Democratic Party, he is best remembered for his pivotal role in shaping the nation's post-war atomic energy policy. His legislative work, particularly the Atomic Energy Act of 1946, established civilian control over nuclear development and created the United States Atomic Energy Commission.

Early life and education

He was born in Norwalk, Connecticut, and demonstrated academic prowess from a young age. He pursued his undergraduate education at Fordham University, graduating in 1924. He then attended Yale Law School, where he earned his Bachelor of Laws degree in 1927. After being admitted to the Connecticut bar association, he began practicing law in Norwalk and later served as a judge in the city's Norwalk City Court.

His legal career advanced significantly when he was appointed an Assistant Attorney General in the administration of President Franklin D. Roosevelt in 1935. In this role, he worked within the United States Department of Justice on various matters. He first sought a seat in the United States Senate in 1944, successfully defeating incumbent Republican John A. Danaher. Upon taking office in 1945, he was assigned to the powerful Senate Foreign Relations Committee.

McMahon Act and atomic energy policy

Deeply affected by the use of atomic weapons on Hiroshima and Nagasaki, he became a leading advocate for the civilian control of atomic energy. He chaired the special Senate Special Committee on Atomic Energy. His tireless efforts culminated in the passage of the Atomic Energy Act of 1946, commonly known as the McMahon Act. This landmark legislation transferred control of nuclear development from the War Department to the newly created civilian Atomic Energy Commission. He was also a prominent supporter of the Baruch Plan, a proposal for international control of atomic energy presented to the United Nations.

Later Senate career and death

In his later years in the Senate, he continued to focus on national security and foreign policy, often taking a hardline stance against Soviet expansionism during the early Cold War. He was a vocal critic of the State Department's handling of East Asian affairs. In 1950, he was easily re-elected to a second term. His career was cut short by a battle with cancer. He died in Bethesda Naval Hospital in Washington, D.C., in July 1952. Governor John Davis Lodge appointed William A. Purtell to complete his term.

Legacy and honors

His most enduring legacy is the framework for civilian nuclear oversight established by the Atomic Energy Act of 1946. The Atomic Energy Commission he helped create evolved into the modern Department of Energy and Nuclear Regulatory Commission. In his home state, Brien McMahon High School in Norwalk is named in his memory. His papers are held by the Library of Congress, and his contributions are noted in histories of the Manhattan Project and the early atomic age.

Category:1903 births Category:1952 deaths Category:United States Senators from Connecticut Category:Democratic Party United States senators