Graham Platner holds a commanding position in Maine’s June 9 Democratic Senate primary after Governor Janet Mills suspended her campaign in late April over fundraising shortfalls, consolidating endorsements and donor support behind the Marine veteran and oyster farmer. Remaining opponents including David Costello and write-in entries, plus Mills’s continued presence on the ballot, create a modest vote split that caps expectations below 90 percent despite Platner’s polling dominance and backing from Bernie Sanders and other progressives. Recent allegations of past conduct have surfaced but have not altered his lead in pre-election surveys, keeping trader-implied probabilities centered on the 65–80 percent range as the primary outcome approaches.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated70-75% 29%
65-70% 21%
75-80% 17%
80-85% 15%
$639 Vol.
$639 Vol.
Jun 9, 2026
<65%
14%
65-70%
21%
70-75%
29%
75-80%
17%
80-85%
15%
85-90%
7%
90%+
9%
70-75% 29%
65-70% 21%
75-80% 17%
80-85% 15%
$639 Vol.
$639 Vol.
Jun 9, 2026
<65%
$145 Vol.
14%
65-70%
$106 Vol.
21%
70-75%
$106 Vol.
29%
75-80%
$78 Vol.
17%
80-85%
$56 Vol.
15%
85-90%
$77 Vol.
7%
90%+
$71 Vol.
9%
Primary elections in Maine are scheduled to be held on June 9, 2026.
This market will resolve according to the share of valid votes Graham Platner wins in the 2026 Maine Democratic Senate Primary.
If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If the results of the specified election are not known definitively by November 30, 2026, 11:59 PM ET, this market will resolve to “Other”.
The primary resolution source for this market will be information from the State of Maine, such as official statewide results published by the Maine Secretary of State (https://www.maine.gov/sos/); however, an overwhelming consensus of credible reporting may suffice.
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.Graham Platner holds a commanding position in Maine’s June 9 Democratic Senate primary after Governor Janet Mills suspended her campaign in late April over fundraising shortfalls, consolidating endorsements and donor support behind the Marine veteran and oyster farmer. Remaining opponents including David Costello and write-in entries, plus Mills’s continued presence on the ballot, create a modest vote split that caps expectations below 90 percent despite Platner’s polling dominance and backing from Bernie Sanders and other progressives. Recent allegations of past conduct have surfaced but have not altered his lead in pre-election surveys, keeping trader-implied probabilities centered on the 65–80 percent range as the primary outcome approaches.
Primary elections in Maine are scheduled to be held on June 9, 2026.
This market will resolve according to the share of valid votes Graham Platner wins in the 2026 Maine Democratic Senate Primary.
If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If the results of the specified election are not known definitively by November 30, 2026, 11:59 PM ET, this market will resolve to “Other”.
The primary resolution source for this market will be information from the State of Maine, such as official statewide results published by the Maine Secretary of State (https://www.maine.gov/sos/); however, an overwhelming consensus of credible reporting may suffice.
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
This market will resolve according to the share of valid votes Graham Platner wins in the 2026 Maine Democratic Senate Primary.
If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If the results of the specified election are not known definitively by November 30, 2026, 11:59 PM ET, this market will resolve to “Other”.
The primary resolution source for this market will be information from the State of Maine, such as official statewide results published by the Maine Secretary of State (https://www.maine.gov/sos/); however, an overwhelming consensus of credible reporting may suffice.
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
Market Opened: Jun 8, 2026, 1:37 PM ET
Volume
$639End Date
Jun 9, 2026Market Opened
Jun 8, 2026, 1:37 PM ETResolver
0x69c47De9D...Primary elections in Maine are scheduled to be held on June 9, 2026.
This market will resolve according to the share of valid votes Graham Platner wins in the 2026 Maine Democratic Senate Primary.
If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If the results of the specified election are not known definitively by November 30, 2026, 11:59 PM ET, this market will resolve to “Other”.
The primary resolution source for this market will be information from the State of Maine, such as official statewide results published by the Maine Secretary of State (https://www.maine.gov/sos/); however, an overwhelming consensus of credible reporting may suffice.
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.Graham Platner holds a commanding position in Maine’s June 9 Democratic Senate primary after Governor Janet Mills suspended her campaign in late April over fundraising shortfalls, consolidating endorsements and donor support behind the Marine veteran and oyster farmer. Remaining opponents including David Costello and write-in entries, plus Mills’s continued presence on the ballot, create a modest vote split that caps expectations below 90 percent despite Platner’s polling dominance and backing from Bernie Sanders and other progressives. Recent allegations of past conduct have surfaced but have not altered his lead in pre-election surveys, keeping trader-implied probabilities centered on the 65–80 percent range as the primary outcome approaches.
Primary elections in Maine are scheduled to be held on June 9, 2026.
This market will resolve according to the share of valid votes Graham Platner wins in the 2026 Maine Democratic Senate Primary.
If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If the results of the specified election are not known definitively by November 30, 2026, 11:59 PM ET, this market will resolve to “Other”.
The primary resolution source for this market will be information from the State of Maine, such as official statewide results published by the Maine Secretary of State (https://www.maine.gov/sos/); however, an overwhelming consensus of credible reporting may suffice.
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
This market will resolve according to the share of valid votes Graham Platner wins in the 2026 Maine Democratic Senate Primary.
If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If the results of the specified election are not known definitively by November 30, 2026, 11:59 PM ET, this market will resolve to “Other”.
The primary resolution source for this market will be information from the State of Maine, such as official statewide results published by the Maine Secretary of State (https://www.maine.gov/sos/); however, an overwhelming consensus of credible reporting may suffice.
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
Volume
$639End Date
Jun 9, 2026Market Opened
Jun 8, 2026, 1:37 PM ETResolver
0x69c47De9D...Graham Platner holds a commanding position in Maine’s June 9 Democratic Senate primary after Governor Janet Mills suspended her campaign in late April over fundraising shortfalls, consolidating endorsements and donor support behind the Marine veteran and oyster farmer. Remaining opponents including David Costello and write-in entries, plus Mills’s continued presence on the ballot, create a modest vote split that caps expectations below 90 percent despite Platner’s polling dominance and backing from Bernie Sanders and other progressives. Recent allegations of past conduct have surfaced but have not altered his lead in pre-election surveys, keeping trader-implied probabilities centered on the 65–80 percent range as the primary outcome approaches.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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