Skip to main content
icon for Maine Democratic Senate Primary Winner

Maine Democratic Senate Primary Winner

icon for Maine Democratic Senate Primary Winner

Maine Democratic Senate Primary Winner

Jun 9

Jun 9

Graham Platner 99.6%

Janet Mills <1%

Dan Kleban <1%

Chellie Pingree <1%

Polymarket

$2,792,227 Vol.

Graham Platner 99.6%

Janet Mills <1%

Dan Kleban <1%

Chellie Pingree <1%

Polymarket

$2,792,227 Vol.

Graham Platner

$1,736,693 Vol.

100%

Janet Mills

$448,970 Vol.

1%

Dan Kleban

$69,894 Vol.

<1%

Chellie Pingree

$87,688 Vol.

<1%

Jordan Wood

$204,661 Vol.

<1%

Troy Jackson

$163,575 Vol.

<1%

Jared Golden

$104,116 Vol.

<1%

This market will resolve according to the winner of the Democratic Primary for United States Senator from Maine. If no 2026 Maine Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Maine Democratic party, however an overwhelming consensus of credible reporting may suffice.**Gov. Janet Mills' suspension of her U.S. Senate campaign on April 30, citing insufficient financial resources, has propelled Graham Platner to near-certain victory in Maine's Democratic primary on June 9.** This caps Platner's prior dominance, with polls showing 20-30 point leads over Mills, bolstered by $4 million in Q1 fundraising from small donors across 98% of Maine zip codes and endorsements from Sens. Elizabeth Warren and Bernie Sanders. His grassroots momentum as a military veteran and oyster farmer, plus early GOP super PAC attacks signaling his general election threat to Sen. Susan Collins, drives trader consensus at 99.6% implied probability. Barring a Mills reversal or unlikely surge by minor candidates like Dan Kleban, resolution appears straightforward per Maine Democratic Party announcement.

This market will resolve according to the winner of the Democratic Primary for United States Senator from Maine.

If no 2026 Maine Democratic Senate Primary takes place, this market will resolve to "Other".

The resolution source for this market will be the first announcement of the results from the Maine Democratic party, however an overwhelming consensus of credible reporting may suffice.
Volume
$2,792,227
End Date
Jun 9, 2026
Market Opened
Sep 15, 2025, 3:40 PM ET
This market will resolve according to the winner of the Democratic Primary for United States Senator from Maine. If no 2026 Maine Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Maine Democratic party, however an overwhelming consensus of credible reporting may suffice.
This market will resolve according to the winner of the Democratic Primary for United States Senator from Maine. If no 2026 Maine Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Maine Democratic party, however an overwhelming consensus of credible reporting may suffice.**Gov. Janet Mills' suspension of her U.S. Senate campaign on April 30, citing insufficient financial resources, has propelled Graham Platner to near-certain victory in Maine's Democratic primary on June 9.** This caps Platner's prior dominance, with polls showing 20-30 point leads over Mills, bolstered by $4 million in Q1 fundraising from small donors across 98% of Maine zip codes and endorsements from Sens. Elizabeth Warren and Bernie Sanders. His grassroots momentum as a military veteran and oyster farmer, plus early GOP super PAC attacks signaling his general election threat to Sen. Susan Collins, drives trader consensus at 99.6% implied probability. Barring a Mills reversal or unlikely surge by minor candidates like Dan Kleban, resolution appears straightforward per Maine Democratic Party announcement.

This market will resolve according to the winner of the Democratic Primary for United States Senator from Maine.

If no 2026 Maine Democratic Senate Primary takes place, this market will resolve to "Other".

The resolution source for this market will be the first announcement of the results from the Maine Democratic party, however an overwhelming consensus of credible reporting may suffice.
Volume
$2,792,227
End Date
Jun 9, 2026
Market Opened
Sep 15, 2025, 3:40 PM ET
This market will resolve according to the winner of the Democratic Primary for United States Senator from Maine. If no 2026 Maine Democratic Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Maine Democratic party, however an overwhelming consensus of credible reporting may suffice.

Beware of external links.

Frequently Asked Questions

"Maine Democratic Senate Primary Winner" is a prediction market on Polymarket with 7 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Graham Platner" at 100%, followed by "Janet Mills" at 1%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 100¢ implies that the market collectively assigns a 100% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Maine Democratic Senate Primary Winner" has generated $2.8 million in total trading volume since the market launched on Sep 15, 2025. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Maine Democratic Senate Primary Winner," browse the 7 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Maine Democratic Senate Primary Winner" is "Graham Platner" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "Janet Mills" at 1%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Maine Democratic Senate Primary Winner" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.