Maine Democratic Senate nominee on July 27?

$747K Vol.Closes Jul 27, 2026

Troy Jackson$272.1K Vol.100%

Nirav Shah$91.9K Vol.<1%

Shenna Bellows$85.1K Vol.<1%

Graham Platner$120.7K Vol.<1%

Jared Golden$51.4K Vol.<1%

Chellie Pingree$7.8K Vol.<1%

Dan Kleban$22.6K Vol.<1%

Janet Mills$35.2K Vol.<1%

Aaron Frey$2.9K Vol.<1%

Jordan Wood$23.1K Vol.<1%

And 4 more markets on this event.

View on Polymarket

At a glance

What

Former Maine Senate President Troy Jackson is leading an abbreviated, delegate-based nomination process to become the Democratic nominee for the 2026 U.S. Senate seat in Maine.

Who

Jackson is the primary contender, having secured support from approximately 367 of 601 delegates, while rivals like Nirav Shah and Shenna Bellows (who exited) are trailing.

Politico Wikipedia

Context

The Maine Democratic Party hastily convened county meetings and will hold a statewide convention in Bangor on July 25 to select a replacement for Graham Platner, who withdrew on July 10 after rape allegations.

Washington Post New York Times

Stakes

As the apparent nominee, Jackson would face incumbent Republican Senator Susan Collins in a high-stakes November election that is a top priority for both national parties to determine Senate majority control.

mainepublic.org Fox News

Note: The market resolves based on the "apparent nominee" on July 27, and the market description explicitly states Graham Platner will be considered the nominee unless he withdraws; however, multiple sources confirm Platner suspended his campaign on July 10, and Jackson is now the clear frontrunner to replace him.

Jul 19

Troy Jackson has effectively secured the Democratic nomination for Maine's U.S. Senate race, winning support from nearly two-thirds of the 601 delegates who will officially nominate a candidate at next weekend's convention.

Politico

Jul 19

Maine Secretary of State Shenna Bellows dropped out of the race partway through the Sunday county-level delegate selection process, leaving Jackson with a dominant lead over remaining rivals.

Politico

Jul 19

Jackson, a former Maine Senate president and fifth-generation logger, is closing in on the delegates needed to clinch the nomination to replace Graham Platner, who suspended his campaign amid sexual assault allegations.

Washington Post New York Times

Now

Jul 23

CNN and Bangor Daily News will host the next debate in the race between Jackson and top contender Nirav Shah.

washingtonexaminer.com

Jul 25

The Maine Democratic Party will hold its statewide nominating convention in Bangor where 601 delegates will officially vote for the Senate nominee.

Politico Washington Post

AI-generated briefing. AI can make mistakes. This is not financial advice.

Bull case

Jackson has secured the backing of nearly two-thirds of the 601 delegates selected at weekend county meetings, giving him a mathematically dominant position to win the official nomination.
Politico
He received endorsements from 54 state and local leaders, including lawmakers from Orono to Westbrook, demonstrating broad support across the state's political spectrum.
Reuters
Jackson previously won a general election in a district carried by both Susan Collins and Donald Trump by 20 points, indicating strong electability in Maine's polarized political environment.
jacksonformaine.com

AI-generated briefing. AI can make mistakes. This is not financial advice.

Bear case

The 601 delegates are not legally bound to support Jackson, meaning the official vote at the July 25 convention could still differ from current delegate commitments.
Politico mainepublic.org
Nirav Shah remains a solidified top contender who has qualified with sufficient signatures and engaged Jackson in debates, suggesting the nomination is not yet formally guaranteed.
washingtonexaminer.com

US Elections

Maine Democratic Senate nominee on July 27?

$747K Vol.Closes Jul 27, 2026

Troy Jackson$272.1K Vol.100%

Nirav Shah$91.9K Vol.<1%

Shenna Bellows$85.1K Vol.<1%

Graham Platner$120.7K Vol.<1%

Jared Golden$51.4K Vol.<1%

Chellie Pingree$7.8K Vol.<1%

Dan Kleban$22.6K Vol.<1%

Janet Mills$35.2K Vol.<1%

Aaron Frey$2.9K Vol.<1%

Jordan Wood$23.1K Vol.<1%

And 4 more markets on this event.

View on Polymarket

At a glance

What

Former Maine Senate President Troy Jackson is leading an abbreviated, delegate-based nomination process to become the Democratic nominee for the 2026 U.S. Senate seat in Maine.

Who

Jackson is the primary contender, having secured support from approximately 367 of 601 delegates, while rivals like Nirav Shah and Shenna Bellows (who exited) are trailing.

Politico Wikipedia

Context

Washington Post New York Times

Stakes

mainepublic.org Fox News

Jul 19

Politico

Jul 19

Maine Secretary of State Shenna Bellows dropped out of the race partway through the Sunday county-level delegate selection process, leaving Jackson with a dominant lead over remaining rivals.

Politico

Jul 19

Washington Post New York Times

Now

Jul 23

CNN and Bangor Daily News will host the next debate in the race between Jackson and top contender Nirav Shah.

washingtonexaminer.com

Jul 25

The Maine Democratic Party will hold its statewide nominating convention in Bangor where 601 delegates will officially vote for the Senate nominee.

Politico Washington Post

AI-generated briefing. AI can make mistakes. This is not financial advice.

Bull case

Jackson has secured the backing of nearly two-thirds of the 601 delegates selected at weekend county meetings, giving him a mathematically dominant position to win the official nomination.
Politico
He received endorsements from 54 state and local leaders, including lawmakers from Orono to Westbrook, demonstrating broad support across the state's political spectrum.
Reuters
Jackson previously won a general election in a district carried by both Susan Collins and Donald Trump by 20 points, indicating strong electability in Maine's polarized political environment.
jacksonformaine.com

AI-generated briefing. AI can make mistakes. This is not financial advice.

Bear case

The 601 delegates are not legally bound to support Jackson, meaning the official vote at the July 25 convention could still differ from current delegate commitments.
Politico mainepublic.org
Nirav Shah remains a solidified top contender who has qualified with sufficient signatures and engaged Jackson in debates, suggesting the nomination is not yet formally guaranteed.
washingtonexaminer.com