2018Flipped from RepublicanFinal resultsIncumbent defeated
2018 election for New Hampshire House District 407
New Hampshire House of Representatives · New Hampshire
Richard Osborne (D) won with 52.4% of the vote, defeating Tiffany Johnson (R) by 4.8 points, a seat Republicans won last time.
Richard OsborneDemocrat · winner
52.4%809
Tiffany JohnsonRepublican · incumbent
47.6%735
1,544 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