Democratic primary · June 9, 2026
Maine Senate Democratic primary
Graham Platner won the Democratic primary on June 9, 2026, advancing to the general election on November 3, 2026.
Where this race stands
VerifiedShowing the Democratic primary view. General-election ratings, forecasts, and tipping-point odds aren't meaningful for a single-party primary — switch to the general election view for those.
Primary result · Democratic primary
Official outcome · June 9, 2026 · forecast shown for reference1Graham PlatnerOyster farmer harbormaster
2Janet Mills
3David Costello
4LaFlamme
Polling average
Weighted, plus each pollster's measured bias subtracted before averaging.
All polls · 26 results
strongpositiveinfocautionflag
| Date | Pollster · trust signals | n · pop | Platner | Lead |
|---|---|---|---|---|
| Jun 7, 26 | Tavern Research | 704 · LV | 68 | — |
| Jun 4, 26 | Tavern Research | 704 · LV | 68 | — |
| May 26, 26 | Univ. of New Hampshire | 595 · LV | 76 | — |
| May 24, 26 | University of New Hampshire | 595 · LV | 76 | — |
| Apr 8, 26 | Workbench Strategy | 600 · LV | 64 | — |
| Apr 6, 26 | Maine People's Resource Center | 514 · LV | 61 | — |
| Mar 30, 26 | Maine People's Resource Center | 514 · LV | 61 | — |
| Mar 25, 26 | Emerson College | 530 · LV | 55 | — |
| Mar 22, 26 | Emerson College | 530 · LV | 55 | — |
| Mar 22, 26 | Impact Research | 500 · LV | 66 | — |
Endorsements · Democratic primary · 57 total
Source · Wikipedia · 0 candidates with no endorsements yetGraham Platner · 57
DGraham Platner57 endorsers
Most notable · Chuck Schumer · Senate Minority Leader (2017–2021, 2025–present) from New York (1999–present)
Elected officials25
Federal 11State 8Local 3
Elected officials · 25
- Chuck Schumer · Senate Minority Leader (2017–2021, 2025–present) from New York (1999–present)
- David Hogg · former vice chair of the Democratic National Committee (2025)
- Hannah Pingree · former Speaker of the Maine House of Representatives (2008-2010) and 2026 gubernatorial candidate
- Maura Healey · governor of Massachusetts (2023–present)
- Tim Walz · governor of Minnesota (2019–present)
- Joe Baldacci · state senator from the 9th district (2020–present) and 2026 candidate for ME-02
- Matthew Dunlap · Maine state auditor (2021; 2022–present), former Maine secretary of state (2005–2011; 2013–2021), and 2026 candidate for ME-02
- Shenna Bellows · Maine secretary of state (2021–present) and 2026 gubernatorial candidate
- Ro Khanna · CA-17 (2017–present)
- Troy Jackson · former president of the Maine Senate (2018–2024) from the 35th district (2008–2014) and 1st district (2016–2024) and 2026 gubernatorial candidate
- Aaron Regunberg · former state representative from Rhode Island 's 4th district (2015–2019)
- Bernie Sanders · Vermont (2007–present) (Independent)
- Carl Sheline · mayor of Lewiston (2022–present)
- Ed Markey · Massachusetts (2013–present)
- Elizabeth Warren · Massachusetts (2013–present)
- Genevieve McDonald · former state representative from the 134th district (2018–2022)
- Joanne Twomey · former state representative from the 19th district (1998–2004) and 135th district (2004–2006)
- Karen Heck · former mayor of Waterville (2012–2014) (Independent)
- Kirsten Gillibrand · New York (2010–present)
- Martin Heinrich · New Mexico (2013–present)
- Robert Reich · former U.S. secretary of labor (1993–1997)
- Ruben Gallego · Arizona (2025–present)
- Safiya Khalid · former Lewiston city councilor (2020–2022)
- Tina Smith · Minnesota (2018–present)
- state representatives · esentatives
Organizations23
Organizations · 23
- AFL-CIO
- College Democrats of America
- Democratic Senatorial Campaign Committee
- End Citizens United
- Gen-Z for Change
- International Association of Machinists and Aerospace Workers
- International Federation of Professional and Technical Engineers
- Maine Democratic Socialists of America
- Maine People's Alliance
- Maine Service Employees Association
- Maine State Nurses Association
- National Nurses United
- Our Revolution
- Planned Parenthood Action Fund
- Progressive Change Campaign Committee
- Progressive Victory
- Showing Up for Racial Justice
- Sierra Club
- Track AIPAC
- United Auto Workers
- VoteVets
- Voters of Tomorrow
- Working Families Party
Celebrity9
Celebrity · 9
- 2026 candidate · 026 candidate for ME-02 and former candidate for this seat
- Angus King III · businessman and 2026 gubernatorial candidate
- Bill Maher · TV host and comedian (Independent)
- John Hodgman · author
- Josh Ritter · singer-songwriter
- Ken Casey · vocalist for the Dropkick Murphys
- Nirav D. Shah · former principal deputy director of the Centers for Disease Control and Prevention (2023–2025) and 2026 gubernatorial candidate
- Shawn Fain · president of the United Auto Workers
- Stephen King · author
Money in this primary
FEC · per-candidate committees · last filing 2026-07-05Graham PlatnerS6ME00373 ↗
Raised
$16.31M
Cash on hand
$2.18M
Cumulative receipts · 4 filings
Top industries
Internet$9K
Internet · $9K
- Google · $9K
Individuals $9K · PACs $0
TV / movies / music$8K
TV / movies / music · $8K
- Sony · $8K
Individuals $8K · PACs $0
Securities & investment$7K
Securities & investment · $7K
- Jane Street · $7K
Individuals $7K · PACs $0
Janet MillsS0ME00200 ↗
Raised
$5.84M
Cash on hand
$717K
Cumulative receipts · 3 filings
Top industries
Govt employees$18K
Govt employees · $18K
- State of Maine · $18K
Individuals $18K · PACs $0
TV / movies / music$9K
TV / movies / music · $9K
- Netflix · $9K
Individuals $9K · PACs $0
In the news
40 shown · last 30d · Google NewsNews volume · 30d
130 articles · building history
News volume · last 30d
Articles130
Trendbuilding history
Article counts indexed by Google News; the sparkline traces weekly volume across the window.
Net favorability
+0.26
Coverage lean (D−R) · shift +0.26 wk
Net favorability
Score+0.26
Week-over-weekshift +0.26 wk
Tone of coverage, D minus R, scored from −1 (all R-favorable) to +1 (all D-favorable). 0 is balanced.
Coverage tilt
D 28%
Neutral 69%
R 2%
31% of outlets rated · by editorial lean
Coverage tilt · by outlet lean
D-leaning outlets28%
Neutral69%
R-leaning outlets2%
31% of outlets classified by editorial lean
A
Maine Democratic Senate candidate Platner faces calls to withdraw after sexual assault allegation
N
Democratic hopes to win back the Senate hang by a thread as Graham Platner weighs dropping out
B
Top Democrats press Maine senate candidate to drop out of race over sexual assault allegation
N
Leading Maine Democrats call on Graham Platner to withdraw from US Senate race amid sexual assault accusation
B
Maine and national Democrats call on Graham Platner to leave US Senate race
N
Who Might Replace Graham Platner if He Drops Out of the Maine Senate Race?
N
Graham Platner faces growing calls to withdraw following allegation of sexual assault
T
Calls grow for Graham Platner to drop out after sexual assault allegation
C
Graham Platner denies sex assault claim as Democrats urge him to quit Maine Senate race
P
Tamara Keith and Carrie Dann on Platner facing calls to drop out of Maine Senate race
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Verification trail
Polls verified0 / 26deterministic
Polls flagged—none
Markets ingested4 platformsupdated 11h ago
FEC filingssyncedcommittee + IE · 2026-07-05
Endorsements112 totalWikipedia scrape
News coverage40 / 30dGoogle News
Method · bounds + percentage totals + date-order checks