SenateGovernorCompetitive

Open Seat Shaheen retiring

Rating: Competitive

Candidates: Chris Pappas, Karishma Manzur, Jared Sullivan (D)

Recent Polls(26 polls)High

DatePollsterGradeMarginSample
Apr 23, 2026Univ. of New HampshireB-D+3.91,129
Apr 21, 2026University of New HampshireB-D+7.81,295
Apr 20, 2026UNHD+3.91,129
Mar 26, 2026Emerson CollegeAD+0.61,100
Mar 23, 2026Saint Anselm CollegeA/BD+1.71,491
Mar 23, 2026Emerson CollegeAD+0.61,100
Mar 18, 2026St. AnselmA/BD+1.71,491
Mar 18, 2026Saint Anselm CollegeA/BD+5.31,491
Jan 29, 2026yes. every kid.D+2.3563
Jan 21, 2026Univ. of New HampshireB-D+2.62,053
Jan 19, 2026UNHD+2.62,053
Jan 19, 2026University of New HampshireB-D+5.32,053
Jan 4, 2026NH JournalD+3.9603
Dec 28, 2025NHJournal/Praecones AnalyticaB/CD+12.2603
Nov 24, 2025Univ. of New HampshireB-D+1.82,212
Nov 19, 2025Saint Anselm CollegeA/BD+5.02,212
Oct 15, 2025co/efficientBD+1.71,034
Oct 13, 2025co/efficient (R)BD+5.71,034
Sep 29, 2025Univ. of New HampshireB-D+3.31,235
Sep 23, 2025University of New HampshireB-D+8.41,235
Sep 15, 2025co/efficientBD+1.7904
Sep 12, 2025co/efficient (R)BD+5.6904
Sep 5, 2025Saint Anselm CollegeA/BD+6.51,776
Aug 27, 2025Saint Anselm CollegeA/BD+6.51,776
Mar 19, 2025Quantus InsightsR+4.6650
Mar 1, 2025Praecones AnalyticaB/CR+4.0626

Historical Context

2020 result
Jeanne Shaheen (D) D+15.9
2024 presidential (NH)
Harris (D) D+2.8
Model vs. last result
R+9.8 shift vs. last result

About this forecast

  • Structural forecast based on electoral type modeling across 10 counties.
  • Types are discovered from historical shift patterns — not from polls or demographics alone.
  • 26 race-specific polls have been incorporated via Bayesian update through the type covariance structure.

Last updated: Feb 28, 2025