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%
Closed: Jun 9, 9:25 PM EST
Kalshi
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.
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.