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1966 Massachusetts U.S. House District 10 Election
Massachusetts · 2 candidates
Heckler +2.2 pts · won by 4,159 votes
Margaret M. HecklerRepublicanWINNER51.1%
96,675 votes
John H HarringtonDemocratic48.9%
92,516 votes
Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).