1966 Massachusetts general election

The 1966 Massachusetts general election was held on November 8, 1966, throughout Massachusetts. Primary elections took place on September 13. At the federal level, Republican Edward Brooke was elected to the United States Senate over Democrat Endicott Peabody and Democrats won seven of twelve seats in the United States House of Representatives. Former Speaker of the House Joseph W. Martin Jr. was the only incumbent not re-elected, after his defeat in the Republican primary against Margaret Heckler.

1966 Massachusetts general election

The 1966 Massachusetts general election was held on November 8, 1966, throughout Massachusetts. Primary elections took place on September 13. At the federal level, Republican Edward Brooke was elected to the United States Senate over Democrat Endicott Peabody and Democrats won seven of twelve seats in the United States House of Representatives. Former Speaker of the House Joseph W. Martin Jr. was the only incumbent not re-elected, after his defeat in the Republican primary against Margaret Heckler.