TOTAL VOLUME:

$134.2b

24H VOL:

$126,324,530

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,434,646,834

406,019

Markets across

30,401

events

MATCHED EVENTS:

2,689

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Tour
All
Elections
Maine Democratic Senate nominee?
kalshi

Maine Democratic Senate nominee?

Volume:
$6,220,622

Graham Platner

 - Kalshi

Graham Platner - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 10, 2026

Closed: Jun 9, 9:25 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Graham Platner

View
100%
Yes 100¢No 0¢
100¢
N/A
$4,387,854
N/A
N/A
$1,851,903
1mo 4d
Yes
kalshi

Janet Mills

0%
Yes 0¢No 100¢
100¢
N/A
$1,459,635
N/A
N/A
$714,027
1mo 4d
No
kalshi

David Costello

0%
Yes 0¢No 100¢
100¢
N/A
$113,904
N/A
N/A
$105,218
1mo 4d
No
kalshi

Jared Golden

0%
Yes 0¢No 100¢
100¢
N/A
$105,551
N/A
N/A
$87,927
1mo 4d
No
kalshi

Chellie Pingree

0%
Yes 0¢No 100¢
100¢
N/A
$81,946
N/A
N/A
$61,827
1mo 4d
No
kalshi

Troy Jackson

0%
Yes 0¢No 100¢
100¢
N/A
$42,449
N/A
N/A
$41,419
1mo 4d
No
kalshi

Jordan Wood

0%
Yes 0¢No 100¢
100¢
N/A
$15,677
N/A
N/A
$12,334
1mo 4d
No
kalshi

Dan Kleban

0%
Yes 0¢No 100¢
100¢
N/A
$7,468
N/A
N/A
$7,458
1mo 4d
No
kalshi

Andrea LaFlamme

0%
Yes 0¢No 100¢
100¢
N/A
$6,139
N/A
N/A
$6,139
1mo 4d
No
Total markets: 9

Intro

This market tracks which candidate will secure the Democratic Party nomination for Maine's 2026 U.S. Senate seat. On Kalshi, the leading outcome—Will Graham Platner be the Democratic nominee for the Senate in Maine?—stands at 98.4%, while Will David Costello be the Democratic nominee for the Senate in Maine? is at 1.0%. Resolution will be determined by the official Democratic Party nomination process, with the general election scheduled for November 3, 2026.

Frequently asked questions

The Maine Democratic Senate nominee dashboard on Kalshi tracks real-time odds and historical price movements for the Democratic Senate nominee race in Maine. The market has generated total volume of $6,220,622 since inception, with $309,654 in trades over the last 24 hours. This dashboard displays live bid-ask spreads, cumulative volume, and outcome probabilities, allowing traders and observers to monitor how the market prices the likelihood of each potential nominee through Nov 3, 2026.

Prediction market odds on Kalshi often diverge from traditional polling because markets incorporate trader expectations, fundraising data, and insider sentiment alongside public surveys. While polls measure voter preference at a single moment, prediction markets aggregate continuous information flow and financial incentives to forecast accurately. For the Maine Democratic nominee race, market prices may lead or lag polling averages depending on whether new campaign developments, endorsements, or candidate viability shifts occur faster in one venue than the other.

The Maine Democratic Senate nominee market resolves on Nov 3, 2026, coinciding with the Maine Democratic primary and nomination process. Resolution is determined by the official outcome of who becomes the Democratic nominee for the U.S. Senate seat in Maine. Traders should monitor state party announcements, convention results, and primary election results as the resolution date approaches to understand how the market will settle.

Key catalysts for Maine Democratic nominee odds include candidate endorsements from major state or national figures, campaign finance disclosures showing fundraising strength, debate performances, primary polling releases, and shifts in candidate viability. Unexpected withdrawals, scandals, or strategic pivots by rivals can rapidly reshape market prices. Media coverage of candidate momentum, grassroots organizing intensity, and voter sentiment in Maine will also influence trader positioning as the market approaches Nov 3, 2026.