1984Final results
1984 election for Massachusetts's 6th District
U.S. House · Massachusetts
Nicholas Mavroules (D) won with 70.4% of the vote, defeating Frederick S. Leber (R) by 43.9 points.
Nicholas MavroulesDemocrat · winner
70.4%168,662
Frederick S. LeberRepublican
26.4%63,363
Donald BatchelderOther party
3.2%7,615
239,649 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 1984
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Nicholas MavroulesFrederick S. Leber
$282.1K
Raised by the campaign
$10.9K
$242.8K
Spent by the campaign
$10.9K
$43K
Cash on hand
$48
Campaign money: FEC, through Dec 31, 1984; FEC, through Jan 31, 1985.
Source: FEC campaign filingsUpdated Dec 31, 1984
The candidates
Nicholas Mavroules (D)Frederick S. Leber (R)
Also on the ballot: Donald Batchelder (Other party), 3.2%