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 has solidified Graham Platner's position as the presumptive Democratic nominee in Maine's June 9 primary, driving trader consensus to price him at 98.6%. The progressive oyster farmer and Marine Corps veteran surged ahead in recent polls through robust grassroots fundraising—over $4 million in Q1 2026 from small donors across 98% of state zip codes—and key endorsements from Sens. Bernie Sanders and Elizabeth Warren, appealing to the party's left amid voter frustration with establishment figures. With Mills out, remaining challengers like Dan Kleban and Chellie Pingree hold negligible support; only a major scandal, late entrant, or voter backlash could realistically disrupt Platner's path, though such risks appear minimal in the 40 days remaining.
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 has solidified Graham Platner's position as the presumptive Democratic nominee in Maine's June 9 primary, driving trader consensus to price him at 98.6%. The progressive oyster farmer and Marine Corps veteran surged ahead in recent polls through robust grassroots fundraising—over $4 million in Q1 2026 from small donors across 98% of state zip codes—and key endorsements from Sens. Bernie Sanders and Elizabeth Warren, appealing to the party's left amid voter frustration with establishment figures. With Mills out, remaining challengers like Dan Kleban and Chellie Pingree hold negligible support; only a major scandal, late entrant, or voter backlash could realistically disrupt Platner's path, though such risks appear minimal in the 40 days remaining.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Apr 30 2026
Governor Janet Mills suspends her Senate campaign, consolidating support behind Graham Platner and further sidelining Wood's Senate chances
Governor Janet Mills suspends her Senate campaign, consolidating support behind Graham Platner and further sidelining Wood's Senate chances
Apr 25 2026
Platner holds a packed town hall in Damariscotta, accusing Democrats of trying to "destroy" his life but reaffirming his commitment to the race, demonstrating his defiant and
Graham Platner rises to 97%2%
Platner holds a packed town hall in Damariscotta, accusing Democrats of trying to "destroy" his life but reaffirming his commitment to the race, demonstrating his defiant and resilient campaign style
Apr 20 2026
Senator Ruben Gallego endorses Platner, marking a second Senate endorsement and signaling growing establishment progressive support despite Schumer backing Mills
Graham Platner rises to 95%2%
Senator Ruben Gallego endorses Platner, marking a second Senate endorsement and signaling growing establishment progressive support despite Schumer backing Mills
Apr 18 2026
Senator Elizabeth Warren endorses Platner at a rally in Portland, Maine, praising him as a fighter who can beat incumbent Susan Collins;
Graham Platner jumps to 93%13%
this high-profile endorsement boosts his credibility and support
Apr 17 2026
Platner announces plans to investigate Trump and impeach two Supreme Court justices if elected, signaling a strong progressive stance;
Graham Platner jumps to 80%5%
this energizes his base ahead of the primary
Apr 7 2026
Reports indicate Mills’ campaign momentum is fading with limited outside support and ineffective ad spending, as Platner maintains a strong lead heading into the primary
Janet Mills drops to 0%9%
Reports indicate Mills’ campaign momentum is fading with limited outside support and ineffective ad spending, as Platner maintains a strong lead heading into the primary
Mar 23 2026
Mills launches aggressive attack ads targeting Platner’s past controversial Reddit posts and tattoo, but the ads fail to significantly shift voter sentiment or polling in her favor
Janet Mills plunges to 9%15%
Mills launches aggressive attack ads targeting Platner’s past controversial Reddit posts and tattoo, but the ads fail to significantly shift voter sentiment or polling in her favor
Mar 19 2026
Senator Elizabeth Warren endorses Graham Platner over Mills, signaling establishment fractures and boosting Platner’s progressive support, further weakening Mills’ position
Janet Mills dips to 24%1%
Senator Elizabeth Warren endorses Graham Platner over Mills, signaling establishment fractures and boosting Platner’s progressive support, further weakening Mills’ position
Mar 17 2026
Mills launches first negative ad highlighting Platner's past sexist comments;
Graham Platner jumps to 75%9%
Platner responds with apologies and continues to hold a commanding lead in polls, showing voter forgiveness or acceptance
Mar 9 2026
Jordan Wood submits qualifying signatures for Maine's 2nd Congressional District primary, confirming his shift away from the Senate race
Jordan Wood dips to 0%1%
Jordan Wood submits qualifying signatures for Maine's 2nd Congressional District primary, confirming his shift away from the Senate race
Feb 27 2026
Analysis highlights Maine Senate race as highly competitive with strong candidates Janet Mills and Graham Platner leading the Democratic primary field, diminishing Wood's prospects
Analysis highlights Maine Senate race as highly competitive with strong candidates Janet Mills and Graham Platner leading the Democratic primary field, diminishing Wood's prospects
Feb 20 2026
Platner faces backlash for promoting an antisemitic conspiracy theorist but quickly removes the post;
Graham Platner jumps to 74%8%
his campaign remains resilient amid scrutiny, and he resumes active campaigning with town halls
Feb 1 2026
Age concerns resurface in media coverage, with Mills defending her fitness and contrasting herself with Joe Biden, while Platner’s youth and populist appeal gain traction among
Janet Mills drops to 22%12%
Age concerns resurface in media coverage, with Mills defending her fitness and contrasting herself with Joe Biden, while Platner’s youth and populist appeal gain traction among Democratic voters
Jan 14 2026
Mills issues a statement responding to federal ICE immigration enforcement operations in Maine, showing active leadership but also facing criticism for traveling out of state
Janet Mills dips to 32%1%
Mills issues a statement responding to federal ICE immigration enforcement operations in Maine, showing active leadership but also facing criticism for traveling out of state during the operation, which may have hurt her standing
Dec 12 2025
Mills touts a $190 million federal rural health care grant as a major achievement linked to her administration, attempting to bolster her profile against Platner’s insurgent
Janet Mills jumps to 40%10%
Mills touts a $190 million federal rural health care grant as a major achievement linked to her administration, attempting to bolster her profile against Platner’s insurgent campaign
Nov 12 2025
Democratic Senate hopeful Jordan Wood drops his Senate campaign and enters the race for Golden’s now‑vacant House seat, further confirming Golden’s exit eliminates any chance of
Democratic Senate hopeful Jordan Wood drops his Senate campaign and enters the race for Golden’s now‑vacant House seat, further confirming Golden’s exit eliminates any chance of his winning the primary
Nov 12 2025
Jordan Wood drops out of Maine Senate race to run for the 2nd Congressional District seat after Jared Golden's retirement announcement, citing better resource use in a less
Jordan Wood dips to 0%4%
Jordan Wood drops out of Maine Senate race to run for the 2nd Congressional District seat after Jared Golden's retirement announcement, citing better resource use in a less crowded primary
Nov 6 2025
Golden’s retirement “opens up” the competitive 2nd‑district seat, prompting analysts to say the Democratic primary is now a contest among other candidates, not Golden
Jared Golden drops to 0%10%
Golden’s retirement “opens up” the competitive 2nd‑district seat, prompting analysts to say the Democratic primary is now a contest among other candidates, not Golden
Nov 5 2025
Progressive Change Campaign Committee endorses Platner, releasing a poll showing him leading Mills by 20 points despite controversies, reinforcing his viability as the Democratic
Graham Platner jumps to 64%8%
Progressive Change Campaign Committee endorses Platner, releasing a poll showing him leading Mills by 20 points despite controversies, reinforcing his viability as the Democratic nominee
Nov 5 2025
Jared Golden announces he will not seek re‑election to the U.S.
Jared Golden plunges to 10%40%
House, ending his bid for a fifth term
Oct 23 2025
Despite negative headlines, Platner's grassroots campaign draws huge crowds and maintains strong polling leads;
Graham Platner surges to 56%25%
Democrats remain reluctant to criticize him publicly, reflecting his growing support base
Oct 16 2025
Inflammatory online posts by Platner surface, including controversial Reddit comments and a tattoo resembling Nazi imagery;
Graham Platner jumps to 42%8%
Platner apologizes and covers the tattoo, but polling still shows him leading Mills by a wide margin in a University of New Hampshire survey conducted Oct 16-21
Oct 16 2025
Polls show Graham Platner leading Mills by a large margin despite controversies, with Platner’s grassroots momentum and Mills’ establishment backing creating a competitive dynamic;
Janet Mills plunges to 40%15%
Platner’s scandals do not significantly dent his lead
Oct 15 2025
Dan Kleban, a prominent Maine Democrat, drops out and endorses Mills, consolidating some party support, but Platner and other candidates remain in the race, limiting Mills’
Janet Mills drops to 31%9%
Dan Kleban, a prominent Maine Democrat, drops out and endorses Mills, consolidating some party support, but Platner and other candidates remain in the race, limiting Mills’ advantage
Oct 15 2025
Dan Kleban suspends his Senate campaign and endorses Gov.
Mills, citing timing and the governor’s stronger position, driving his market
Oct 14 2025
Janet Mills officially announces her 2026 U.S.
Janet Mills jumps to 55%13%
Senate campaign, gaining immediate national Democratic support and raising $1 million in 24 hours, boosting her initial market confidence
Oct 14 2025
Maine Governor Janet Mills announces her Senate bid, instantly reshaping the Democratic field and prompting speculation that lesser‑known candidates will drop out
Maine Governor Janet Mills announces her Senate bid, instantly reshaping the Democratic field and prompting speculation that lesser‑known candidates will drop out
Sep 15 2025
Kleban, co‑founder of Maine Beer Company, officially launches a Senate campaign emphasizing an “outsider” message and cost‑of‑living issues
Dan Kleban plunges to 12%38%
Kleban, co‑founder of Maine Beer Company, officially launches a Senate campaign emphasizing an “outsider” message and cost‑of‑living issues
Sep 15 2025
Reports emerge that Janet Mills is considering a 2026 Senate run, with Democratic leaders actively recruiting her to challenge Susan Collins, raising early expectations for her
Janet Mills dips to 47%3%
Reports emerge that Janet Mills is considering a 2026 Senate run, with Democratic leaders actively recruiting her to challenge Susan Collins, raising early expectations for her candidacy
Sep 15 2025
Jordan Wood announces candidacy for Maine U.S.
Senate seat, becoming the first Democrat to enter the race
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 has solidified Graham Platner's position as the presumptive Democratic nominee in Maine's June 9 primary, driving trader consensus to price him at 98.6%. The progressive oyster farmer and Marine Corps veteran surged ahead in recent polls through robust grassroots fundraising—over $4 million in Q1 2026 from small donors across 98% of state zip codes—and key endorsements from Sens. Bernie Sanders and Elizabeth Warren, appealing to the party's left amid voter frustration with establishment figures. With Mills out, remaining challengers like Dan Kleban and Chellie Pingree hold negligible support; only a major scandal, late entrant, or voter backlash could realistically disrupt Platner's path, though such risks appear minimal in the 40 days remaining.
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 has solidified Graham Platner's position as the presumptive Democratic nominee in Maine's June 9 primary, driving trader consensus to price him at 98.6%. The progressive oyster farmer and Marine Corps veteran surged ahead in recent polls through robust grassroots fundraising—over $4 million in Q1 2026 from small donors across 98% of state zip codes—and key endorsements from Sens. Bernie Sanders and Elizabeth Warren, appealing to the party's left amid voter frustration with establishment figures. With Mills out, remaining challengers like Dan Kleban and Chellie Pingree hold negligible support; only a major scandal, late entrant, or voter backlash could realistically disrupt Platner's path, though such risks appear minimal in the 40 days remaining.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Apr 30 2026
Governor Janet Mills suspends her Senate campaign, consolidating support behind Graham Platner and further sidelining Wood's Senate chances
Governor Janet Mills suspends her Senate campaign, consolidating support behind Graham Platner and further sidelining Wood's Senate chances
Apr 25 2026
Platner holds a packed town hall in Damariscotta, accusing Democrats of trying to "destroy" his life but reaffirming his commitment to the race, demonstrating his defiant and
Graham Platner rises to 97%2%
Platner holds a packed town hall in Damariscotta, accusing Democrats of trying to "destroy" his life but reaffirming his commitment to the race, demonstrating his defiant and resilient campaign style
Apr 20 2026
Senator Ruben Gallego endorses Platner, marking a second Senate endorsement and signaling growing establishment progressive support despite Schumer backing Mills
Graham Platner rises to 95%2%
Senator Ruben Gallego endorses Platner, marking a second Senate endorsement and signaling growing establishment progressive support despite Schumer backing Mills
Apr 18 2026
Senator Elizabeth Warren endorses Platner at a rally in Portland, Maine, praising him as a fighter who can beat incumbent Susan Collins;
Graham Platner jumps to 93%13%
this high-profile endorsement boosts his credibility and support
Apr 17 2026
Platner announces plans to investigate Trump and impeach two Supreme Court justices if elected, signaling a strong progressive stance;
Graham Platner jumps to 80%5%
this energizes his base ahead of the primary
Apr 7 2026
Reports indicate Mills’ campaign momentum is fading with limited outside support and ineffective ad spending, as Platner maintains a strong lead heading into the primary
Janet Mills drops to 0%9%
Reports indicate Mills’ campaign momentum is fading with limited outside support and ineffective ad spending, as Platner maintains a strong lead heading into the primary
Mar 23 2026
Mills launches aggressive attack ads targeting Platner’s past controversial Reddit posts and tattoo, but the ads fail to significantly shift voter sentiment or polling in her favor
Janet Mills plunges to 9%15%
Mills launches aggressive attack ads targeting Platner’s past controversial Reddit posts and tattoo, but the ads fail to significantly shift voter sentiment or polling in her favor
Mar 19 2026
Senator Elizabeth Warren endorses Graham Platner over Mills, signaling establishment fractures and boosting Platner’s progressive support, further weakening Mills’ position
Janet Mills dips to 24%1%
Senator Elizabeth Warren endorses Graham Platner over Mills, signaling establishment fractures and boosting Platner’s progressive support, further weakening Mills’ position
Mar 17 2026
Mills launches first negative ad highlighting Platner's past sexist comments;
Graham Platner jumps to 75%9%
Platner responds with apologies and continues to hold a commanding lead in polls, showing voter forgiveness or acceptance
Mar 9 2026
Jordan Wood submits qualifying signatures for Maine's 2nd Congressional District primary, confirming his shift away from the Senate race
Jordan Wood dips to 0%1%
Jordan Wood submits qualifying signatures for Maine's 2nd Congressional District primary, confirming his shift away from the Senate race
Feb 27 2026
Analysis highlights Maine Senate race as highly competitive with strong candidates Janet Mills and Graham Platner leading the Democratic primary field, diminishing Wood's prospects
Analysis highlights Maine Senate race as highly competitive with strong candidates Janet Mills and Graham Platner leading the Democratic primary field, diminishing Wood's prospects
Feb 20 2026
Platner faces backlash for promoting an antisemitic conspiracy theorist but quickly removes the post;
Graham Platner jumps to 74%8%
his campaign remains resilient amid scrutiny, and he resumes active campaigning with town halls
Feb 1 2026
Age concerns resurface in media coverage, with Mills defending her fitness and contrasting herself with Joe Biden, while Platner’s youth and populist appeal gain traction among
Janet Mills drops to 22%12%
Age concerns resurface in media coverage, with Mills defending her fitness and contrasting herself with Joe Biden, while Platner’s youth and populist appeal gain traction among Democratic voters
Jan 14 2026
Mills issues a statement responding to federal ICE immigration enforcement operations in Maine, showing active leadership but also facing criticism for traveling out of state
Janet Mills dips to 32%1%
Mills issues a statement responding to federal ICE immigration enforcement operations in Maine, showing active leadership but also facing criticism for traveling out of state during the operation, which may have hurt her standing
Dec 12 2025
Mills touts a $190 million federal rural health care grant as a major achievement linked to her administration, attempting to bolster her profile against Platner’s insurgent
Janet Mills jumps to 40%10%
Mills touts a $190 million federal rural health care grant as a major achievement linked to her administration, attempting to bolster her profile against Platner’s insurgent campaign
Nov 12 2025
Democratic Senate hopeful Jordan Wood drops his Senate campaign and enters the race for Golden’s now‑vacant House seat, further confirming Golden’s exit eliminates any chance of
Democratic Senate hopeful Jordan Wood drops his Senate campaign and enters the race for Golden’s now‑vacant House seat, further confirming Golden’s exit eliminates any chance of his winning the primary
Nov 12 2025
Jordan Wood drops out of Maine Senate race to run for the 2nd Congressional District seat after Jared Golden's retirement announcement, citing better resource use in a less
Jordan Wood dips to 0%4%
Jordan Wood drops out of Maine Senate race to run for the 2nd Congressional District seat after Jared Golden's retirement announcement, citing better resource use in a less crowded primary
Nov 6 2025
Golden’s retirement “opens up” the competitive 2nd‑district seat, prompting analysts to say the Democratic primary is now a contest among other candidates, not Golden
Jared Golden drops to 0%10%
Golden’s retirement “opens up” the competitive 2nd‑district seat, prompting analysts to say the Democratic primary is now a contest among other candidates, not Golden
Nov 5 2025
Progressive Change Campaign Committee endorses Platner, releasing a poll showing him leading Mills by 20 points despite controversies, reinforcing his viability as the Democratic
Graham Platner jumps to 64%8%
Progressive Change Campaign Committee endorses Platner, releasing a poll showing him leading Mills by 20 points despite controversies, reinforcing his viability as the Democratic nominee
Nov 5 2025
Jared Golden announces he will not seek re‑election to the U.S.
Jared Golden plunges to 10%40%
House, ending his bid for a fifth term
Oct 23 2025
Despite negative headlines, Platner's grassroots campaign draws huge crowds and maintains strong polling leads;
Graham Platner surges to 56%25%
Democrats remain reluctant to criticize him publicly, reflecting his growing support base
Oct 16 2025
Inflammatory online posts by Platner surface, including controversial Reddit comments and a tattoo resembling Nazi imagery;
Graham Platner jumps to 42%8%
Platner apologizes and covers the tattoo, but polling still shows him leading Mills by a wide margin in a University of New Hampshire survey conducted Oct 16-21
Oct 16 2025
Polls show Graham Platner leading Mills by a large margin despite controversies, with Platner’s grassroots momentum and Mills’ establishment backing creating a competitive dynamic;
Janet Mills plunges to 40%15%
Platner’s scandals do not significantly dent his lead
Oct 15 2025
Dan Kleban, a prominent Maine Democrat, drops out and endorses Mills, consolidating some party support, but Platner and other candidates remain in the race, limiting Mills’
Janet Mills drops to 31%9%
Dan Kleban, a prominent Maine Democrat, drops out and endorses Mills, consolidating some party support, but Platner and other candidates remain in the race, limiting Mills’ advantage
Oct 15 2025
Dan Kleban suspends his Senate campaign and endorses Gov.
Mills, citing timing and the governor’s stronger position, driving his market
Oct 14 2025
Janet Mills officially announces her 2026 U.S.
Janet Mills jumps to 55%13%
Senate campaign, gaining immediate national Democratic support and raising $1 million in 24 hours, boosting her initial market confidence
Oct 14 2025
Maine Governor Janet Mills announces her Senate bid, instantly reshaping the Democratic field and prompting speculation that lesser‑known candidates will drop out
Maine Governor Janet Mills announces her Senate bid, instantly reshaping the Democratic field and prompting speculation that lesser‑known candidates will drop out
Sep 15 2025
Kleban, co‑founder of Maine Beer Company, officially launches a Senate campaign emphasizing an “outsider” message and cost‑of‑living issues
Dan Kleban plunges to 12%38%
Kleban, co‑founder of Maine Beer Company, officially launches a Senate campaign emphasizing an “outsider” message and cost‑of‑living issues
Sep 15 2025
Reports emerge that Janet Mills is considering a 2026 Senate run, with Democratic leaders actively recruiting her to challenge Susan Collins, raising early expectations for her
Janet Mills dips to 47%3%
Reports emerge that Janet Mills is considering a 2026 Senate run, with Democratic leaders actively recruiting her to challenge Susan Collins, raising early expectations for her candidacy
Sep 15 2025
Jordan Wood announces candidacy for Maine U.S.
Senate seat, becoming the first Democrat to enter the race
Beware of external links.
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 99%, followed by "Janet Mills" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 99¢ implies that the market collectively assigns a 99% 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 99%, meaning the market assigns a 99% chance to that outcome. The next closest outcome is "Janet Mills" at 0%. 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.
Yes. You don't need to trade to stay informed. This page serves as a live tracker for "Maine Democratic Senate Primary Winner." The outcome probabilities update in real-time as new trades come in. You can bookmark this page and check the comments section to see what other traders are saying. You can also use the time-range filters on the chart to see how the odds have shifted over time. It's a free, real-time window into what the market expects to happen.
Polymarket odds are set by real traders putting real money behind their beliefs, which tends to surface accurate predictions. With $2.8 million traded on “Maine Democratic Senate Primary Winner,” these prices aggregate the collective knowledge and conviction of thousands of participants — often outperforming polls, expert forecasts, and traditional surveys. Prediction markets like Polymarket have a strong track record of accuracy, especially as events approach their resolution date. For example, Polymarket has a one month accuracy score of 94%. For the latest stats on Polymarket’s prediction accuracy, visit the accuracy page on Polymarket.
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On Polymarket, the price of each outcome represents the market's implied probability. A price of 99¢ for "Graham Platner" in the "Maine Democratic Senate Primary Winner" market means traders collectively believe there is roughly a 99% chance that "Graham Platner" will be the correct result. If you buy "Yes" shares at 99¢ and the outcome is correct, you receive $1.00 per share — a profit of 1¢ per share. If incorrect, those shares are worth $0.
The "Maine Democratic Senate Primary Winner" market is scheduled to resolve on or around Jun 9, 2026. This means trading will remain open and the odds will continue to shift as new information emerges until that date. The exact resolution timing depends on when the official result becomes available, as outlined in the "Rules" section on this page.
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Frequently Asked Questions