TOTAL VOLUME:

$134.1b

24H VOL:

$113,466,932

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,423,222,590

402,751

Markets across

30,217

events

MATCHED EVENTS:

2,632

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Maine Republican Senate nominee?
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Maine Republican Senate nominee?

Volume:
$52,051

Susan Collins

 - Kalshi

Susan Collins - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 10, 2026

Closed: Jun 9, 9:12 PM EST

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Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Susan Collins

View
100%
Yes 100¢No 0¢
100¢
N/A
$46,722
N/A
N/A
$30,945
1mo 4d
Yes
kalshi

Dan Smeriglio

0%
Yes 0¢No 100¢
100¢
N/A
$5,330
N/A
N/A
$4,866
1mo 4d
No
Total markets: 2

Intro

This market tracks whether Susan Collins will secure the Republican Party nomination to contest the 2026 Class II Maine Senate seat. On Kalshi, Collins holds 98.1% probability of becoming the nominee, with Dan Smeriglio at 2.8%. Resolution is determined by the official Republican Party nomination process for Maine's 2026 Senate race. Watch the Maine Republican primary election scheduled for June 2026, which will determine the party's official nominee.

Frequently asked questions

The Maine Republican Senate nominee dashboard on Kalshi tracks real-time odds and historical price movements for the Republican Senate nominee race in Maine. The dashboard displays the current probability that Susan Collins will secure the Republican nomination, along with 24-hour trading volume and cumulative group volume of $52,051. Users can monitor how odds shift as new polling data, endorsements, or campaign developments emerge. The interface provides a transparent view of market sentiment and liquidity, helping traders and observers gauge confidence in potential outcomes leading up to the Nov 3, 2026 resolution date.

Prediction market odds on Kalshi often diverge from traditional polling averages because markets incorporate real-money incentives and forward-looking sentiment. While polls measure voter preference at a single moment, prediction markets reflect traders' expectations about the actual nominee outcome. Maine's Republican primary dynamics—including incumbent Senator Susan Collins' positioning and potential challengers—create distinct signals between the two data sources. Markets may price in factors like fundraising momentum, organizational strength, or late-breaking developments that polls have not yet captured. Comparing both sources provides a more complete picture of the nomination race.

The Maine Republican Senate nominee market resolves on Nov 3, 2026. Resolution is determined by the official outcome of Maine's Republican primary or nominating process, as recognized by state election authorities and major news organizations. The market will settle once the Republican nominee for the 2026 U.S. Senate seat from Maine is formally confirmed. Traders should monitor official Maine Republican Party announcements and state election timelines to understand the exact nominating mechanism and any potential changes to the primary schedule.

Key catalysts for price movement include formal candidate announcements or withdrawals, shifts in party endorsements, fundraising reports, and polling releases showing changes in Republican primary support. Campaign events, debate performances, or media coverage highlighting challengers' viability could pressure the current odds. Changes in national Republican dynamics or messaging may also influence Maine-specific sentiment. Unexpected developments—such as scandals, health issues, or strategic pivots by potential nominees—could trigger sharp repricing. Traders should monitor Maine Republican Party communications, candidate social media, and local and national political news for signals that could alter market expectations before Nov 3, 2026.