In the race for Governor, Republican Lt. Governor Robert F. Bradford defeated incumbent Democrat Maurice Tobin. Overall, Republicans won five of the six elected state-wide offices. Only incumbent Democratic Auditor Thomas J. Buckley retained his office.
Republican Lieutenant Governor Robert F. Bradford defeated incumbent Democratic Governor Maurice Tobin. Tobin survived a Democratic primary challenge from attorney Francis Harrigan, while Bradford was unopposed for the Republican nomination.
Incumbent Democratic Senator David I. Walsh ran for re-election to a fourth term. He was defeated by former Senator Henry Cabot Lodge Jr., who had resigned from Massachusetts's other Senate seat in order to serve in World War II.
United States Senate election in Massachusetts, 1946[12]
Nine seats were won by Republican Party candidates.
Twelve seats were won by candidates seeking re-election. The 4th District seat (based in Worcester) was won by Democrat Harold Donohue, defeating incumbent Republican Pehr Holmes. The 11th District seat (based in Boston and Cambridge) was won by John F. Kennedy after incumbent James Michael Curley vacated the seat to become Mayor of Boston.