2018Final results
2018 election for Massachusetts's 5th District
U.S. House · Massachusetts
Katherine Clark (D) won with 75.9% of the vote, defeating John Hugo (R) by 51.8 points.
Katherine ClarkDemocrat · winner
75.9%236,243
John HugoRepublican
24.0%74,856
311,324 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Katherine ClarkNo Republican
$1.5M
Raised by the campaign
—
$1.4M
Spent by the campaign
—
$1M
Cash on hand
—
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018