Race update

Graham Platner secured the Democratic nomination on June 9, 2026. However, following the release of rape accusations against Platner, he withdrew from the race on July 10, 2026. As a result, the Maine Democratic Party nominated Troy Jackson to replace Platner on the ballot on July 25, 2026.

Troy Jackson, 2026 Maine Senate Democratic candidate
Troy Jackson
DEMOCRATIC
President, Maine State Senate (D)
2018 – 2024

Maine 2026 SENATE POLLS

Susan Collins, 2026 Maine Senate Republican candidate
Susan Collins
REPUBLICAN
US Senate (R-ME)
1997 – Present

2026 Maine Senate Polls:

Aggregate of all polls released for Maine's Senate election between Democrat Troy Jackson and Republican Susan Collins. This page will update the moment new polls are released, including the polling average, projected margin, and survey details.

Year
2026
Race
Senate
State
Maine
Democratic candidate
Troy Jackson
Republican candidate
Susan Collins
Incumbent / open seat
Susan Collins
Polling average
45.5% D / 48.4% R
Polling average margin
R +3.0
Last updated
12:00 AM on August 4, 2026
Polls included
3
Latest poll
Z to A Research (D) — July 8, 2026

Democrat

%

Weighted polling average

Republican

%

Weighted polling average

Net margin

Polling average difference

Polls Included

Number of polls conducted

Pollster
Date
Sample
Susan Collins*
Troy Jackson
Margin
Polling Average
48.4%
45.5%
R +3.0
Z to A Research (D)
July 8, 2026
988 LV
48%
47%
R +1.0
Public Policy Polling (D)
July 7, 2026
785 LV
44%
49%
D +5.0
Wedgewood Polls
July 6, 2026
405 LV
43%
48%
D +5.0