A
Republican, Bradford entered politics by serving as executive secretary to Governor
Joseph Ely, a conservative
Democrat with whom he served as an associate at Ropes & Gray. After Ely left office in 1935, the two founded a law firm. He later worked on the gubernatorial and senatorial campaigns of
Leverett Saltonstall, with whom he formed a close friendship. In 1938, he made his first bid for elective office by challenging Republican incumbent
Warren L. Bishop in the race for
District Attorney of
Middlesex County. He defeated Bishop and served in that position from 1939 to 1945. In this post he gained a reputation for cracking down on corruption; his convictions included mayors of
Lowell and Cambridge, and a state public works commissioner. In
1944 he won election as
lieutenant governor, serving under
Democratic governor
Maurice J. Tobin. In
1946, Bradford challenged and defeated Tobin, and served one term as governor, from 1947 to 1949. In the contest, Bradford was supported by Democrat
James Michael Curley, who was contesting with Tobin for control of the state Democratic party apparatus. As governor, Bradford governed in the fashion of his mentor, Leverett Saltonstall, with an emphasis on fiscal
conservatism and social
liberalism. During his administration, he advanced balanced budgets and intervened to prevent protracted
strikes, which would be deleterious to the interests of business and the broader public. His administration worked to promote
public housing for
veterans and prevent
alcoholism through treatment and prevention programs. In 1947, he chaired the "
Silent Guest" program in which Americans were encouraged to donate the cash equivalent of one setting of
Thanksgiving dinner to the starving poor in post-war
Europe. He also introduced a master plan for improving the state's roadways, and enacted legislation to greatly expand the state's agricultural school in
Amherst, which was renamed
University of Massachusetts, Amherst. The funding plan for the highway plan involved the floating of bond, and was rejected by the Democratic-controlled legislature but approved under his successor, Democrat
Paul A. Dever. Bradford was defeated in his bid for re-election in
1948 by Dever, a former
Massachusetts Attorney General, in a Democratic landslide. ==After politics==