2018Flipped from RepublicanFinal resultsIncumbent defeated
2018 election for New Hampshire Senate District 23
New Hampshire State Senate · New Hampshire
Jon Morgan (D) won with 50.2% of the vote, defeating Bill Gannon (R) by 0.4 points, a seat Republicans won last time.
Jon MorganDemocrat · winner
50.2%12,911
Bill GannonRepublican · incumbent
49.8%12,806
25,717 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