TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 8, 8:00 PM EST
Polymarket
This market tracks which candidate will secure the Democratic nomination for U.S. Senator from Maine. On Polymarket, Graham Platner holds 98.4% probability of becoming the Democratic nominee, while Janet Mills stands at 0.7%. The market will resolve based on the official results announced by the Maine Democratic Party or an overwhelming consensus of credible reporting. Watch for the outcome of the 2026 Maine Democratic Senate Primary, scheduled for July 31, 2026, which will determine the resolution.
Prediction market odds on Polymarket often diverge from traditional polling because markets incorporate trader conviction, fundraising data, and real-time political developments. While polls measure voter preference at a single moment, prediction markets aggregate ongoing information and financial incentives. For the Maine Democratic primary, market participants may weight factors like candidate momentum, media coverage, and endorsements differently than pollsters do. Comparing market odds to recent polls reveals whether traders are pricing in scenarios polls have not yet captured, offering a complementary lens on the race's trajectory.
The Maine Democratic Senate Primary Winner market resolves on Jul 31, 2026. Resolution is determined by the official outcome of Maine's Democratic Senate primary election. The market will settle based on which candidate receives the Democratic Party's nomination for the U.S. Senate seat. Traders holding shares in the winning candidate receive their payout, while shares in non-winning candidates expire worthless. The exact resolution criteria and official sources are specified in the market's terms, ensuring clarity on how the outcome will be verified.
Key catalysts for price movement include candidate announcements, debate performances, endorsements from Maine Democratic leaders, and fundraising reports. Media coverage of scandals or policy positions can shift trader sentiment rapidly. Primary election results from other states may influence expectations about Maine's race dynamics. Polling releases showing shifts in voter preference will likely trigger trading activity. Candidate withdrawals or new entrants to the race would dramatically reprrice the market. Grassroots organizing efforts and voter turnout indicators closer to the primary date will also drive odds adjustments as traders update their forecasts based on emerging ground-level signals.