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Race preview · Elections and voting · New Hampshire

Eight incumbents run in Rockingham 25 House race

Eight Republican incumbents are running in the contested Rockingham 25 State House race in New Hampshire’s Nov. 3, 2026, general election.

Eight incumbents run in Rockingham 25 House race

Key takeaways

  • The general election is Nov. 3, 2026.
  • Eight candidates are running in Rockingham 25.
  • All eight candidates are Republicans.
  • All eight candidates are incumbents.
  • The race is listed as contested.

New Hampshire State House District Rockingham 25 has a contested general election featuring eight candidates, all of whom are Republican incumbents. Voters will decide the race on Nov. 3, 2026, as part of New Hampshire’s general election.

The candidates are Dennis Mannion, John Sytek, Sue Vandecasteele, Tanya Donnelly, Valerie McDonnell, John Janigian, Lorie Ball and Joe Sweeney. Because every candidate is an incumbent, each already holds a seat in the New Hampshire House. Because every candidate is a Republican, the field does not present voters with a choice between different party labels.

Who is running

Each of the eight candidates enters the race with the same two basic designations: Republican and incumbent. Those labels tell voters the candidates’ party affiliation and that they currently serve in the office they are seeking again.

  • Dennis Mannion: Mannion is a Republican incumbent running in the Rockingham 25 State House general election.
  • John Sytek: Sytek is a Republican incumbent running in the Rockingham 25 State House general election.
  • Sue Vandecasteele: Vandecasteele is a Republican incumbent running in the Rockingham 25 State House general election.
  • Tanya Donnelly: Donnelly is a Republican incumbent running in the Rockingham 25 State House general election.
  • Valerie McDonnell: McDonnell is a Republican incumbent running in the Rockingham 25 State House general election.
  • John Janigian: Janigian is a Republican incumbent running in the Rockingham 25 State House general election.
  • Lorie Ball: Ball is a Republican incumbent running in the Rockingham 25 State House general election.
  • Joe Sweeney: Sweeney is a Republican incumbent running in the Rockingham 25 State House general election.

What makes the race contested

The district’s general-election field includes eight named candidates rather than a single candidate running alone. The contest is unusual in one straightforward respect: all eight candidates share the same party affiliation and incumbent status.

That means party labels and incumbency will not distinguish one candidate from another. The candidates’ names will be the central identifying information in the race. No candidate policy positions are part of this preview, so voters looking to compare the field on specific issues will need to follow campaign statements and other candidate information as the election approaches.

The race is part of the 2026 general election rather than a party primary. The general election is the stage at which voters choose who will serve in office for the next term.

Election date and voter process

Election Day is Tuesday, Nov. 3, 2026. The contest is for the New Hampshire State House and is identified as District Rockingham 25.

Before voting, residents can check the official ballot for candidate names and the voting instructions that apply to the district. Those instructions are especially important in a race with several candidates because they tell voters how to mark the ballot correctly.

After voting ends, election officials will count the ballots and complete the official results process. Until that process is finished, the race remains an open choice among the eight Republican incumbents seeking another term in the State House.

What to watch

  • Final ballot certification
  • Official voting instructions for the district
  • Election Day ballot counting
  • Certification of the results

Who's running: State House, District Rockingham 25

Election day: November 3, 2026

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