2016Final resultsIncumbent defeated
2016 election for New Hampshire House District 517
New Hampshire House of Representatives · New Hampshire
2 seats: Mark MacKenzie (D), Timothy J. Smith (D) won.
2 seatsMark MacKenzieDemocrat · winner
27.8%1,765
Timothy J. SmithDemocrat · winner · incumbent
24.7%1,568
Tammy SimmonsRepublican · incumbent
23.8%1,509
Dan GarthwaiteRepublican
23.5%1,487
6,340 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET