State Lean
Lean Democratic
Battleground watch
ClosedPrimary ElectionDemocratic
2026 Maine Democratic Senate Primary Results
Primary Day: Recorded market close:
Maine Democratic Senate nominee on Jul 31, 2026?
$4.2M
JUN 9, 2026Primary Election
Party selects its nominee.
Race Snapshot
Compare the candidates' saved odds. Updated .
| Candidate | Saved odds |
|---|---|
| 100% |
OddsSaved odds
Prices saved with this edition; no automatic updates.
Odds History
Total volume
$4.2M
24h volume
$2.2K
source: Kalshi
Politics IQ
Structural race context from reviewed jurisdiction data
Maine · US Senate
Lean DemocraticBattleground watch
Primary System
Party primary or state-specific
No primary runoff
Election Rules
Primary Jun 9, 2026
Runoff: No
General: Nov 3, 2026
Early voting
In-person absentee voting generally runs from 30 days before Election Day through three business days before Election Day.
Sources reviewed May 2, 2026 · U.S. Senate, Class II senators · U.S. Senate, current senator list · 270toWin/Cook · NCSL
Election Dates and Deadlines
Important voting dates, registration deadlines and prediction market closing times.
Latest Election News
Recent reporting and announcements directly related to this race and its candidates.
AINews Summary
Troy Jackson is now the confirmed Democratic nominee after Graham Platner withdrew. Recent polling still shows a tight race, and Republicans have begun attacking Jackson’s tax record. The contest remains competitive with no clear leader. Jackson’s nomination is now settled, but the close polling suggests the race remains competitive. The new attacks may add some downside risk for Jackson, though the overall effect is still mixed.
Articles
BNBaltimore News13 hours ago
EXPLAINER | What's at stake in the 2026 midterm elections
The results will determine who serves in Congress for the next two years.
MLM Live Michigan 1 day ago
Senate midterms 2026: Latest polls show GOP trouble in battleground states
In order to flip the Senate, Democrats need to keep control of their 47 seats and gain four more.
PPPortland Press Herald15 hours ago
Live updates: Polls open across Maine on Election Day
Mainers are voting in highly watched Senate, congressional and governor's elections, as well as state, county and local races and referendums. Polls are open until 8 p.m.
SSlate2 days ago
This Wasn’t Supposed to Be Senate Democrats’ Year. Here’s What Changed.
The party is in the midst of a remarkable comeback—mostly thanks to one man.
PPPortland Press Herald2 days ago
Election Day is Tuesday. Here’s what Mainers need to know
Whether you're planning to vote Tuesday, still have that absentee ballot sitting on your counter, or are just eager to see how it all shakes out, here's what to expect on Election Day.
PNPBS News19 hours ago
Live Results: Maine Senate midterm election
Maine's Senate election pits incumbent Republican Sen. Susan Collins against Democratic former state Senate President Troy Jackson.
FNFox News2 days ago
Susan Collins blasts Chuck Schumer over what she calls false attack ads
Sen. Susan Collins accused Chuck Schumer and Democrats of flooding Maine voters with “outright lies" in attack ads as she faces a tight reelection race against Troy Jackson.
UTUSA TODAY1 day ago
What early voting data tell us about the 2026 midterm elections
Approximately 54 million Americans have offered a glimpse into the midterm election, which is seeing an uptick in younger and racially diverse voters.
Latest Polls
Polling Average
80%60%40%20%0%
55.4%
31.4%
Aggregation source: FiftyPlusOne
Campaign Fundraising
Total RaisedCash on Hand
Aug 31, 2026$25M
$18.8M
$12.5M
$6.3M
$0
G. Platner
J. Mills
J. Golden
D. Kleban
C. Pingree
S. Bellows
D. Costello
S. Gideon
Candidate
Total Raised
Cash on Hand
Burn Rate (per month)
Last report
G. PlatnerGraham Platner$21.05MContrib: $21.00M
$1.76MSpent: $19.29M
$1.07MLast period: $4.67M
JULY QUARTERLY · Jun 30, 2026
J. MillsJanet Mills$6.06MContrib: $5.64M
$102.8KSpent: $5.96M
$331.1KLast period: -$530.2K
JULY QUARTERLY · Jun 30, 2026
J. GoldenJared Golden$2.58MContrib: $2.30M
$397.7KSpent: $2.31M
$128.4KLast period: -$3.5K
JULY QUARTERLY · Jun 30, 2026
D. KlebanDan Kleban$458.8KContrib: $458.7K
$87Spent: $458.7K
$25.5KLast period: $0
JULY QUARTERLY · Jun 30, 2026
C. PingreeChellie Pingree$429.6KContrib: $417.4K
$423.1KSpent: $422.2K
$23.5KLast period: $41.4K
JULY QUARTERLY · Jun 30, 2026
S. BellowsShenna Bellows$381.4KContrib: $381.4K
$136Spent: $381.2K
$19.1KLast period: $336.9K
TERMINATION REPORT · Aug 31, 2026
D. CostelloDavid Allen Costello$154.4KContrib: $44.4K
$0Spent: $154.4K
$7.7KLast period: -$250
TERMINATION REPORT · Aug 26, 2026
S. GideonSara Gideon$49.0KContrib: $0
$2.43MSpent: $1.38M
$76.8KLast period: -$2.2K
JULY QUARTERLY · Jun 30, 2026
Source: FEC
Related Races
Saved Kalshi settlement results
These are market contract results, not election calls or vote totals. News, polls, prices and charts remain as captured.
Observation saved Nov 4, 2026, 11:35 AM UTC. No automatic updates.
Maine Democratic Senate nominee on Jul 31, 2026?
All preserved contracts have verified final results.
Will it be confirmed that Aaron Frey is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Ashley Webb is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Brian Bryant is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Chellie Pingree is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that David Costello is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Dan Kleban is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Emily Cain is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Elizabeth Dickerson is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Graham Platner is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Jared Golden is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Janet Mills is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Jordan Wood is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Mattie Daughtrey is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
No one
Will it be confirmed that No one is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Nirav Shah
Will it be confirmed that Nirav Shah is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Patrick Dempsey is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Paige Loud is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Shenna Bellows is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Sara Gideon is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Troy Jackson is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: Yes
Settled Jul 31, 2026, 2:53 PM UTC
Will it be confirmed that Valli Geiger is the Democratic nominee for U.S. Senate in Maine on July 31, 2026?
Final: No
Settled Jul 31, 2026, 2:53 PM UTC