Maine Senate winner? (Person)

In 2026

$1.6M Vol.Closes Jul 7, 2027

Troy Jackson$341.9K Vol.66%

Susan Collins$188.2K Vol.34%

Nirav Shah$167.6K Vol.<1%

Dan Kleban$97.2K Vol.<1%

Graham Platner$317.5K Vol.<1%

Jared Golden$50.8K Vol.<1%

Janet Mills$90.6K Vol.<1%

Patrick Dempsey$62.4K Vol.<1%

Valli Geiger$63.4K Vol.<1%

Brian Bryant$26.4K Vol.<1%

And 5 more markets on this event.

View on Kalshi

At a glance

What

Troy Jackson is the likely Democratic nominee to challenge Republican Senator Susan Collins in the 2026 Maine Senate election after replacing withdrawn candidate Graham Platner.

Who

The key figures are Jackson, a former Maine Senate President and fifth-generation logger from northern Maine, and his opponent, incumbent Senator Susan Collins.

Context

Jackson entered the race following Platner's withdrawal under pressure from party officials due to rape allegations, and he has quickly garnered backing from a wide array of delegates elected in weekend county meetings.

Stakes

Maine is a must-win state for Democrats in their bid to regain control of the US Senate, making this race critical for the national legislative majority.

Note: Jackson's nomination is not yet legally official until the July 25 convention, though delegate commitments make his selection effectively certain.

Jul 19

Troy Jackson has effectively secured the Maine Senate Democratic nomination by winning support from a majority of state delegates, with nearly two-thirds of the 601 delegates committed to voting for him at the upcoming statewide convention.

Politico

Jul 19

Shenna Bellows exited the competition for the Democratic Senate nominee, leaving Jackson with a significant lead as he expands his advantage among the delegate group.

New York Times

Jul 19

Thousands of Democrats across Maine gathered over the weekend for county meetings to replace Graham Platner, where Jackson sprinted to an early lead as the preferred progressive populist candidate.

Washington Post

Now

Jul 25

The Maine Democratic statewide convention will officially nominate the Senate candidate, where Jackson is expected to secure the nomination based on current delegate commitments.

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

Bull case

Jackson is a fifth-generation logger from conservative northern Maine who champions progressive themes like Medicare-for-all while maintaining deep roots in rural, Trump-voting communities, giving him a unique ability to connect with working-class voters.
Washington Post The Guardian
A poll conducted after Platner's withdrawal found that Jackson would beat Collins 49% to 44%, outperforming Platner who trailed Collins 47% to 42%.
usatoday.com
Jackson has proven electoral viability in regions that feel "left behind," securing his 2022 state senate seat with 52.5% of the vote in an area Donald Trump won by a considerable margin in 2024.
The Guardian

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

Bear case

Jackson was defeated in the 2026 Democratic gubernatorial primary just weeks before entering the Senate race, finishing third and demonstrating recent struggles in statewide primary elections.
Fox News Wikipedia
He previously lost a 2014 congressional primary, indicating a history of primary election difficulties that could raise concerns about his ability to unify the party or win decisively.
Wikipedia
Jackson spent over two decades in the state legislature but left the post of Senate President in 2024, meaning he lacks recent experience in a high-profile executive or federal campaign role.

Elections

Maine Senate winner? (Person)

In 2026

$1.6M Vol.Closes Jul 7, 2027

Troy Jackson$341.9K Vol.66%

Susan Collins$188.2K Vol.34%

Nirav Shah$167.6K Vol.<1%

Dan Kleban$97.2K Vol.<1%

Graham Platner$317.5K Vol.<1%

Jared Golden$50.8K Vol.<1%

Janet Mills$90.6K Vol.<1%

Patrick Dempsey$62.4K Vol.<1%

Valli Geiger$63.4K Vol.<1%

Brian Bryant$26.4K Vol.<1%

And 5 more markets on this event.

View on Kalshi

At a glance

What

Troy Jackson is the likely Democratic nominee to challenge Republican Senator Susan Collins in the 2026 Maine Senate election after replacing withdrawn candidate Graham Platner.

Who

The key figures are Jackson, a former Maine Senate President and fifth-generation logger from northern Maine, and his opponent, incumbent Senator Susan Collins.

Context

Stakes

Maine is a must-win state for Democrats in their bid to regain control of the US Senate, making this race critical for the national legislative majority.

Note: Jackson's nomination is not yet legally official until the July 25 convention, though delegate commitments make his selection effectively certain.

Jul 19

Politico

Jul 19

Shenna Bellows exited the competition for the Democratic Senate nominee, leaving Jackson with a significant lead as he expands his advantage among the delegate group.

New York Times

Jul 19

Thousands of Democrats across Maine gathered over the weekend for county meetings to replace Graham Platner, where Jackson sprinted to an early lead as the preferred progressive populist candidate.

Washington Post

Now

Jul 25

The Maine Democratic statewide convention will officially nominate the Senate candidate, where Jackson is expected to secure the nomination based on current delegate commitments.

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

Bull case

Jackson is a fifth-generation logger from conservative northern Maine who champions progressive themes like Medicare-for-all while maintaining deep roots in rural, Trump-voting communities, giving him a unique ability to connect with working-class voters.
Washington Post The Guardian
A poll conducted after Platner's withdrawal found that Jackson would beat Collins 49% to 44%, outperforming Platner who trailed Collins 47% to 42%.
usatoday.com
Jackson has proven electoral viability in regions that feel "left behind," securing his 2022 state senate seat with 52.5% of the vote in an area Donald Trump won by a considerable margin in 2024.
The Guardian

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

Bear case

Jackson was defeated in the 2026 Democratic gubernatorial primary just weeks before entering the Senate race, finishing third and demonstrating recent struggles in statewide primary elections.
Fox News Wikipedia
He previously lost a 2014 congressional primary, indicating a history of primary election difficulties that could raise concerns about his ability to unify the party or win decisively.
Wikipedia
Jackson spent over two decades in the state legislature but left the post of Senate President in 2024, meaning he lacks recent experience in a high-profile executive or federal campaign role.

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