Nonpartisan Analysis Since 1980

Maine
Senate I

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State map

Current Rating

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Not Up This Cycle

2025 Baseline

What's This?
D +9.4
D: 52.4%, R: 43%

Incumbent

Campaign Finance Data

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Past Elections

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Calendar

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MAR
15
2026
Candidate Filing Deadline
JUN
9
2026
Primary Election Day
NOV
3
2026
Election Day

Analysis

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Gubernatorial Overview (June 25, 2026)

June 25, 2026
by Jacob Rubashkin, Nathan Gonzales & Inshara Ali

House Report Shorts (June 25, 2026)

June 25, 2026
by Nathan Gonzales, Jacob Rubashkin & Inshara Ali

2026 House Overview (June 11, 2026)

June 11, 2026
by Jacob Rubashkin & Nathan Gonzales

Senate Report Shorts (June 11, 2026)

June 11, 2026
by Jacob Rubashkin

Governor Report Shorts (June 11, 2026)

June 11, 2026
by Jacob Rubashkin

Coverage

I’m a Maine Reporter Who Went to High School With Graham Platner. Here’s What Explains His Success.

June 26, 2026
NOTUS

Ratings

2026
January 9, 2025
Not Up This Cycle
2024
January 6, 2023
Solid Democrat
2020
January 4, 2019
Not Up This Cycle
2018
January 13, 2017
Solid Democrat
2014
January 25, 2013
Not Up This Cycle
2012
November 2, 2012
Likely Democrat
September 28, 2012
Lean Democrat
July 13, 2012
Likely Democrat
March 23, 2012
Lean Democrat
February 28, 2012
Toss-up
November 18, 2011
Solid Republican
January 28, 2011
Likely Republican
2010
June 24, 2010
Not Up This Cycle

Baselines

About
2025+9.4D 52.4, R 43.0
2024
+9.4
2022
+8.8
2020
+4.3
2018
+7.6
2016
+7.1
2014
+7.3