Maine Senate race 2026
Our 21-day average puts Susan Collins at 46.6%, Graham Platner at 49.3%, Troy Jackson at 49.1%, Janet Mills at 37%, based on 73 polls ending between 3/25/2025 and 10/25/2026. Dots on the chart are individual polls; the line is the rolling average. How to read these numbers.
Maine Senate race 2026 over time
73 polls · 21-day rolling average · dots are individual polls
Susan Collins 46.6%
Graham Platner 49.3%
Troy Jackson 49.1%
Janet Mills 37%
View data as table
| Choice | Latest average | Polls | Latest poll |
|---|---|---|---|
| Susan Collins | 46.6% | 65 | 10/25/2026 |
| Graham Platner | 49.3% | 31 | 7/6/2026 |
| Troy Jackson | 49.1% | 25 | 10/25/2026 |
| Janet Mills | 37% | 20 | 7/7/2026 |
Average result
Unweighted mean across 73 matching polls
View data as table
| Choice | % |
|---|---|
| Susan Collins | 44.9% |
| Graham Platner | 49.8% |
| Troy Jackson | 48.7% |
| Janet Mills | 37.6% |
| Jordan Wood | 16% |
| David Costello | 2% |
| Andrea LaFlamme | 1% |
| David Evans | 0.5% |
Individual polls (73)
| End date | Pollster | Sample | Results |
|---|---|---|---|
| 10/25/2026 | Marist University | 1,449 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 10/23/2026 |
Echelon Insights
for NetChoice |
413 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 10/23/2026 | Trafalgar Group | 1,077 LV |
Susan Collins (R)
Troy Jackson (D)
|
| 10/20/2026 |
Beacon Research/Shaw & Co. Research
for Fox News |
1,514 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 10/14/2026 | InsiderAdvantage | 1,200 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 10/11/2026 | Suffolk University | 500 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 10/5/2026 | The Washington Post/George Mason University School of Policy and Government | 800 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 10/4/2026 | Marist University | 1,505 RV |
Troy Jackson (D)
Susan Collins (R)
|
| 10/1/2026 | Trafalgar Group | 1,091 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 10/1/2026 | Wedgewood Polls | 400 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 10/1/2026 |
YouGov
for CBS News |
1,136 LV |
Susan Collins (R)
Troy Jackson (D)
|
| 9/30/2026 | co/efficient | 1,240 LV |
Susan Collins (R)
Troy Jackson (D)
|
| 9/29/2026 | Maine People's Resource Center | 684 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 9/23/2026 | InsiderAdvantage | 1,200 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 9/22/2026 |
Fabrizio, Lee & Associates/Impact Research
for AARP |
982 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 9/22/2026 |
The New York Times/Siena University
for Portland Press Herald |
619 LV |
Susan Collins (R)
Troy Jackson (D)
|
| 9/21/2026 | University of New Hampshire | 1,312 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 9/15/2026 | Quantus Insights | 621 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 9/14/2026 | University of Massachusetts Lowell Center for Public Opinion/YouGov | 650 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 9/8/2026 | YouGov | 1,335 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 9/6/2026 | CNN/SSRS | 880 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 8/28/2026 | Abacus Data | 327 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 8/10/2026 |
Beacon Research/Shaw & Co. Research
for Fox News |
1,000 RV |
Troy Jackson (D)
Susan Collins (R)
|
| 8/1/2026 |
Hart Research Associates
for Senate Majority PAC |
802 LV |
Troy Jackson (D)
Susan Collins (R)
|
| 7/20/2026 | University of New Hampshire | 1,178 LV |
Troy Jackson (D)
Susan Collins (R)
|