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Pollster file

Quantus Insights

Historical accuracy is measured against certified results. Current-cycle records come from the canonical, deduplicated archive and do not by themselves change the sealed forecast.

Historical polls
8
Mean absolute error
6.38percentage points
Historical bias
R+2.32
Represented cycles
22024–2025
Current archive
97canonical records
History span
Oct 17, 2024through Nov 3, 2025
Identity

Known names and relationships

Known aliases
Quantus Insights (R)
Organization type
Single canonical organization
Cycles represented
2024 · 2025

8 eligible historical polls is a limited denominator; both MAE and bias may move materially as another cycle is added.

Canonical 2025–2026 archive

Current-cycle records

Archive source date 2026-09-09 · bundled copy. Archive records may be newer than the sealed forecast; inclusion here does not mean the forecast uses them.

12 shown · 97 total

Acton +1

Amy Acton 45.9% · Vivek Ramaswamy 44.9%

Field dates
Mar 13–Mar 14, 2026
Sample
925 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Acton +1

Vivek Ramaswamy 44.9% · Amy Acton 45.9%

Field dates
Mar 13–Mar 14, 2026
Sample
809 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Husted +2

Sherrod Brown 44% · Jon Husted 46%

Field dates
Mar 13–Mar 14, 2026
Sample
925 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Platner +6.8

Susan Collins 41.8% · Graham Platner 48.6%

Field dates
Mar 3–Mar 5, 2026
Sample
800 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Collins +1.6

Susan Collins 44.6% · Janet Mills 43%

Field dates
Mar 3–Mar 5, 2026
Sample
800 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Generic ballot

Generic ballot

Dem +6

Dem 48% · Rep 42%

Field dates
Mar 2–Mar 3, 2026
Sample
1,624 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Disapprove +13

Approve 43% · Disapprove 56%

Field dates
Feb 12–Feb 13, 2026
Sample
1,515 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Generic ballot

Generic ballot

Dem +6

Dem 48% · Rep 42%

Field dates
Feb 12–Feb 13, 2026
Sample
1,515 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Generic ballot

Generic ballot

Dem +6.5

Dem 47.2% · Rep 40.7%

Field dates
Jan 20–Jan 22, 2026
Sample
1,000 RV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Disapprove +8.1

Approve 43.5% · Disapprove 51.6%

Field dates
Jan 20–Jan 22, 2026
Sample
1,000 RV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Generic ballot

Generic ballot

Dem +2

Dem 43% · Rep 41%

Field dates
Dec 15–Dec 16, 2025
Sample
1,000 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Disapprove +9

Approve 44% · Disapprove 53%

Field dates
Dec 15–Dec 16, 2025
Sample
1,000 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
See this pollster in the Full Poll Archive →
Certified-result history

Eligible historical observations

8 shown · 8 total

CycleRaceTypeField endSamplePollResultError
2025VA · GovernorGov-G2025-11-03—D+9.0D+15.4R+6.4
2025VA · Attorney generalAG-G2025-11-03—0D+6.7R+6.7
2025NJ · GovernorGov-G2025-10-27—D+3.0D+14.4R+11.4
2025VA · GovernorGov-G2025-10-20—D+5.0D+15.4R+10.4
2025VA · Attorney generalAG-G2025-10-20—R+7.0D+6.7R+13.7
2024WI · PresidentPres-G2024-10-29—0R+0.9D+0.9
2024MI · PresidentPres-G2024-10-28—0R+1.4D+1.4
2024PA · PresidentPres-G2024-10-17—R+2.0R+1.7R+0.3

3 further rows are held in this pollster’s history shard as within-party or nonpartisan contests (Prim). Those carry no D/R orientation, so they are excluded from the error, bias and coverage figures above and from the table.

Method · historical final-three-week D/R general-election rows plus verified historical supplement; min n=5

Definition · bias_D is poll D-R margin minus actual D-R margin; positive overstates Democrats.

A missing sample, sponsor or source is labeled unavailable; it is never reconstructed.

Poll data via VoteHub, used under CC BY 4.0. Poll data from The New York Times, used under CC BY 4.0.