Short Answer

Aaron Guckian is projected to be the Rhode Island Republican gubernatorial nominee by WPRI-TV and other news reports, although official results have not been formally declared as of September 10, 2026; the market prices this outcome at 99.4%.

1. Market Behavior & Drivers

The definitive repricing in this market occurred on September 10, 2026, when the probability of Aaron Guckian becoming the nominee jumped 85.4 percentage points to 99.4%. This was a direct reaction to Guckian winning the Republican gubernatorial primary the previous day, September 9. Guckian secured the nomination after defeating challenger Elaine Pelino.
Reports of an extremely close race in early vote counts explain why the market had not priced in a Guckian victory prior to the final projection. Once the outcome was confirmed, the market moved from uncertainty to near-certainty, resolving the contract. The low trading prices in the weeks before the primary reflected this pre-election ambiguity.
  • Since last update (~27d): Aaron Guckian's model probability surged +76.3pp (model_led), as edge compressed.
  • Elaine Pelino's model probability dropped -75.6pp (market_led), with edge compression.
  • Our model's edge over the market flipped positive to +0.1pp, a +16.0pp shift.
  • Aaron Guckian is the likely nominee, projected by WPRI-TV following the primary. Official results for the September 9 primary have not been formally declared.

Who Wins and Why

Outcome Market Model Why
Aaron Guckian 99.4% 99.5% News reports announced Aaron Guckian's projected victory as the Republican nominee for Governor.
Elaine Pelino 0.4% 0.4% News reports announced Aaron Guckian's victory, indicating Elaine Pelino was defeated in the primary.
Robert Raimondo 0.1% 0.1% Robert Raimondo was not reported as a significant contender in the Republican gubernatorial primary results.

Current Context

Aaron Guckian was projected the winner of the Rhode Island Republican primary, held on September 9, 2026 [1]. In early unofficial counts, Guckian led primary challenger Elaine Pelino, a political newcomer, in a race that remained extremely close prior to the final projection [1][2]. Pelino and Guckian were the two candidates in the primary contest [3][4][5].
In the November 3, 2026, general election, Aaron Guckian, the projected Republican nominee, will face Democratic nominee Helena Foulkes and independent candidates Ken Block, Jay Gotra, and C. Reynolds [1]. The 2026 midterm general election is scheduled for November 3, 2026, with the post-election certification process occurring throughout November and December 2026 [6].
Sources (6)
  1. 1Republicans pick Guckian as GOP nominee for RI governor | WPRI.comwpri.com
  2. 2Rhode Island primary election results: Foulkes and Morales topple incumbentsoceanstatemedia.org
  3. 32026 Rhode Island Governor | Live Election Resultsvotes.decisiondeskhq.com
  4. 4Rhode Island gubernatorial election, 2026 (September... - Ballotpediaballotpedia.org
  5. 5Aaron Guckian - Ballotpediaballotpedia.org
  6. 6The 2026 Midterms: Key Dates and Events • Bipartisan Policy Centerbipartisanpolicy.org

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

📈 September 10, 2026: 85.4pp spike

Price increased from 14.0% to 99.4%

Outcome: Aaron Guckian

What happened: The primary driver for the market movement on September 10, 2026, was Aaron Guckian winning the Rhode Island Republican gubernatorial primary on September 9, 2026 [1][2]. News reports announced Guckian's victory over Elaine Pelino, confirming him as the party's nominee [1][3]. While the specific 85.4 percentage point spike is not supported by documented data, such a decisive event would predictably cause a significant upward adjustment in his probability [1]. Social media activity was not identified as the primary driver for this post-election market shift.
Sources (3)
  1. 1Republicans pick Guckian as GOP nominee for RI governor | WPRI.comwpri.com
  2. 2RI 2026 GOP Gubernatorial Primary Live Results: Guckian Holds Slight Lead Over Pelino | Across Rhode Island, RI Patchpatch.com
  3. 3RI GOP primary results: Governor's race between Guckian, Pelinoprovidencejournal.com

4. Market Data

Contract Snapshot

This Kalshi market allows trading on individual candidates for the Rhode Island Republican Governor nomination. A contract for a specific candidate will resolve 'Yes' if that candidate becomes the Rhode Island Republican gubernatorial nominee. Conversely, it resolves 'No' if the candidate does not become the nominee. The market is scheduled to settle by September 8, 2027, and no special settlement conditions are explicitly detailed.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability
Aaron Guckian $1.00 $0.01 99%
Elaine Pelino $0.00 $1.00 0%
Robert Raimondo $0.00 $1.00 0%

Market Discussion

Aaron Guckian won the 2026 Rhode Island Republican primary for governor on September 9, 2026, defeating Elaine Pelino, who had built strong social media support through her alignment with Donald Trump and the MAGA movement [1][2][3]. This outcome significantly contrasted with pre-primary prediction markets, which had assigned Pelino an implied probability of 88%-92% of securing the nomination [4][5]. However, as of September 10, 2026, official results identifying the confirmed Republican nominee for Governor had not yet been finalized or declared [6].

Sources (6)
  1. 1Republicans pick Guckian as GOP nominee for RI governor | WPRI.comwpri.com
  2. 2RI GOP primary results: Governor's race between Guckian, Pelinoprovidencejournal.com
  3. 3Ex-NFL Cheerleader Elaine Pelino and Former Gubernatorial Aide Aaron Guckian Locked in Razor-Thin Rhode Island GOP Primarypolitical.org
  4. 4Rhode Island Republican Governor nominee? - Kalshi Odds | CoinRithmcoinrithm.com
  5. 52026 Rhode Island Governor Republican Primary | Polls & Oddspredictionedge.com
  6. 6Rhode Island gubernatorial election, 2026 (September... - Ballotpediaballotpedia.org

5. How did the final fundraising totals for Aaron Guckian and Elaine Pelino compare in the lead-up to the September 9, 2026 primary?

Primary Election DateSeptember 9, 2026 [1][2][3][4]
Guckian Party Endorsement Vote72-to-44 [5][6][7]
Comparative Fundraising TotalsNot publicly available [5][6][7][8]
Comparative fundraising totals for the 2026 Rhode Island primary are not available. Publicly available records for the 2026 Rhode Island Republican gubernatorial primary do not provide specific, comparative final fundraising totals for Aaron Guckian and Elaine Pelino in the lead-up to the September 9, 2026 primary [5][6][7]. Similarly, publicly available campaign finance summaries for this cycle do not offer comprehensive, comparative fundraising totals for these two candidates [8]. Aaron Guckian and Elaine Pelino were the two candidates in this primary election [1][2][3][4]. Campaign finance records for state-level elections in Rhode Island are managed by the Rhode Island Board of Elections, not the Federal Election Commission (FEC) [8][9][10].
Aaron Guckian secured a significant institutional advantage and won the primary. While specific campaign finance totals are unavailable, Guckian held an institutional advantage by securing the state Republican Party's endorsement at its June convention. He received 72 votes compared to Pelino's 44 [5][6][7]. Ultimately, Aaron Guckian won the Republican gubernatorial primary on September 9, 2026 [11].
Sources (11)
  1. 1Rhode Island gubernatorial election, 2026 (September... - Ballotpediaballotpedia.org
  2. 2Republican Party primaries in Rhode Island, 2026 - Ballotpediaballotpedia.org
  3. 32026 Rhode Island Governor | Live Election Resultsvotes.decisiondeskhq.com
  4. 4Rhode Island state executive official elections, 2026ballotpedia.org
  5. 52026 Rhode Island Republican Governor Primary Results & Winnerpredictionedge.com
  6. 62026 Rhode Island Elections, Odds & Candidates | Prediction Edgepredictionedge.com
  7. 7Governor of Rhode Island | Voter Guide: 2026 Primary Sept. 9rhodeislandcurrent.com
  8. 8Aaron Guckian - Ballotpediaballotpedia.org
  9. 9FEC FORM 3docquery.fec.gov
  10. 10FEC FORM 3docquery.fec.gov
  11. 1112 News projects Aaron Guckian as the winner of the Republican...facebook.com

6. Which major news organizations and election authorities have officially projected or certified Aaron Guckian as the winner of the September 9 primary?

Projected Primary WinnerAaron Guckian (12 News/WPRI-TV) [1][2]
Primary Election DateSeptember 9, 2026 [3][4][5][6]
Votes ReportedOver 95% (as of September 10, 2026) [7]
WPRI-TV has projected Aaron Guckian as the Rhode Island Republican primary winner. Following the primary election on September 9, 2026, 12 News (WPRI-TV) officially projected Aaron Guckian as the winner of the Rhode Island Republican gubernatorial primary, having defeated his opponent Elaine Pelino [1][2].
Official certification and widespread major news projections are still pending. As of September 10, 2026, available reports from major news organizations and election authorities do not yet show official projections or certified results declaring Aaron Guckian as the winner of the primary [8][9]. Despite this, over 95% of the votes have been reported in the Republican primary and tracked by major news outlets, including the Associated Press [7].
Prediction markets expect Guckian's projected primary victory to resolve favorably. The prediction market question regarding the Rhode Island Republican Governor nominee is expected to resolve in favor of Aaron Guckian following his projected primary victory [10].
Sources (10)
  1. 112 News projects Aaron Guckian as the winner of the Republican...facebook.com
  2. 2Republicans pick Guckian as GOP nominee for RI governor - WPRI-TVwpri.com
  3. 3Rhode Island gubernatorial election, 2026 (September... - Ballotpediaballotpedia.org
  4. 4Aaron Guckian - Ballotpediaballotpedia.org
  5. 5Rhode Island gubernatorial election, 2026 - Ballotpediaballotpedia.org
  6. 6Rhode Island state executive official elections, 2026 - Ballotpediaballotpedia.org
  7. 7Rhode Island Governor Primary Election Resultsnytimes.com
  8. 82026 Rhode Island Governor | Live Election Resultsvotes.decisiondeskhq.com
  9. 92026 Rhode Island Governor Live Election Results | DDHQintegration-votes.decisiondeskhq.com
  10. 102026 Rhode Island Elections, Odds & Candidates | Prediction Edgepredictionedge.com

7. What is the official timeline for the Rhode Island Board of Elections to certify the results of the September 9, 2026 primary?

Local Boards Announce ResultsSeptember 10, 2026 [1]
Local Boards Certify Results to StateSeptember 12, 2026 [1]
Recount Petition Period9 days [2][3]
Local boards quickly process primary results and initial protests. Following the September 9, 2026 statewide primary in Rhode Island, local boards of canvassers are scheduled to tabulate returns and announce results on September 10, 2026 [1]. Any protests concerning the primary must also be filed by this same date. These local boards are then required to certify local candidate results to the Department of State Elections Division no later than September 12, 2026 [1].
The State Board of Elections declares results, initiating a recount period. While the provided information does not detail a specific official timeline for the Rhode Island Board of Elections to certify the primary results, state law mandates that the Board tabulate and declare results [2][3]. This declaration then initiates a 9-day period during which candidates are permitted to petition for a recount [2][3]. Importantly, certificates of nomination or election are not issued until this recount period expires or until any requested recounts are fully completed [1][2][3].
Sources (3)
  1. 1[PDF] A guide for election officials - Vote.RI.govvote.sos.ri.gov
  2. 2Rhode Island S3113legislation.ballotpedia.org
  3. 3Rhode Island H7782legislation.ballotpedia.org

8. How did pre-election polling from sources like WPRI/RWU compare with the final vote margins for Aaron Guckian and Elaine Pelino?

Salve Regina Poll: Pelino Lead37% for Elaine Pelino, 17% for Aaron Guckian, 44% undecided (Embold Research, August 3-11, 2026) [1]
Prediction Market: Pelino Probability92.3% probability for Elaine Pelino (September 9/10, 2026) [2]
Projected WinnerAaron Guckian (September 9, 2026) [3]
No WPRI or RWU polling was identified for the Republican primary. The research did not identify any WPRI-sponsored polls for the Republican primary race between Aaron Guckian and Elaine Pelino, and there was no information available regarding polling from RWU [4]. The final public poll, conducted by Embold Research for Salve Regina University from August 3–11, 2026, showed Elaine Pelino leading Aaron Guckian 37% to 17%, with a significant 44% of voters undecided [1]. Furthermore, prediction markets heavily favored Pelino, assigning her a 92.3% probability of winning compared to Guckian's 7.4% on September 9/10, 2026 [1][2].
Aaron Guckian was projected as the winner despite pre-election indicators. Despite Pelino's lead in the Salve Regina poll and the favorable prediction market odds, Aaron Guckian was projected as the winner of the 2026 Rhode Island Republican primary for governor on September 9, 2026 [3]. However, as of September 10, 2026, official election results were not yet available. The race was still listed in available sources as having zero votes recorded, making it impossible to compare the projection with final vote margins at that time [5][6].
Sources (6)
  1. 1Rhode Island gubernatorial election, 2026 (September... - Ballotpediaballotpedia.org
  2. 22026 Rhode Island Republican Governor Primary Results & Winnerpredictionedge.com
  3. 312 News projects Aaron Guckian as the winner of the Republican...facebook.com
  4. 4Rhode Island gubernatorial election, 2026 (September 9 Democratic primary) - Ballotpediaballotpedia.org
  5. 52026 Rhode Island Governor | Live Election Resultsvotes.decisiondeskhq.com
  6. 62026 Rhode Island Governor Live Election Results | DDHQnewsnation-votes.decisiondeskhq.com

9. What key endorsements did Aaron Guckian secure in the final months of the primary that may have contributed to his win over Elaine Pelino?

Primary StatusNo official winner confirmed as of September 10, 2026 (pending results) [1][2][3]
RI Republican Party EndorsementSecured formal endorsement from RI Republican Party [4]
Endorsement Delegate Vote72-to-44 delegate vote [4]
Rhode Island's Republican primary results and winner remain unconfirmed. As of September 10, 2026, official and publicly verified results for the 2026 Rhode Island Republican gubernatorial primary between Aaron Guckian and Elaine Pelino are still pending or not yet finalized [1][2][3]. Because of this, no winner has been confirmed, and no public documentation details specific key endorsements contributing to a Guckian win in the primary's final months [3].
Guckian secured a significant formal party endorsement. Despite the primary's unconfirmed outcome, Aaron Guckian secured a significant formal endorsement from the Rhode Island Republican Party [4]. This endorsement occurred at their June convention and was identified as a primary strength for his campaign, achieved via a 72-to-44 delegate vote [4]. Official tracking for other endorsements in this specific race remains incomplete, according to consulted sources [3].
Sources (4)
  1. 1Rhode Island gubernatorial election, 2026 (September... - Ballotpediaballotpedia.org
  2. 2Republican Party primaries in Rhode Island, 2026 - Ballotpediaballotpedia.org
  3. 3Aaron Guckian - Ballotpediaballotpedia.org
  4. 4Republicans pick Guckian as GOP nominee for RI governor - WPRI-TVwpri.com

10. What Could Change the Odds

Key Catalysts

The Rhode Island Republican gubernatorial primary was held on September 9, 2026 [1][2][3]. Aaron Guckian, a former Carcieri administration aide who held the state party's endorsement, defeated Elaine Pelino in a close contest [1][4]. Guckian was reported as the winner [1]; however, as of September 10, 2026, the official winner of the Republican primary has not been formally declared in the provided expert-curated data [5][2][6][7]. In the November 3, 2026 general election, Guckian will face Democratic nominee Helena Foulkes and independent candidates Ken Block, Jay Gotra, and C. Reynolds [1][8].
Broader catalysts for US election prediction markets include official polling data, fundraising totals, and campaign finance spending, specifically super PAC activity [9][10][11]. Candidate debate performances also act as a catalyst [9][10][11]. Economic indicators such as inflation and consumer sentiment can influence market probabilities [9][10][11].
Key dates for the remaining 2026 election cycle include the ongoing debate season from September to October [11][12]. The final 30-day window for intensive ad spending precedes the general election date of November 3, 2026 [11][12].

Key Dates & Catalysts

  • Expiration: September 08, 2027
  • Closes: September 08, 2027
Sources (12)
  1. 1Republicans pick Guckian as GOP nominee for RI governor | WPRI.comwpri.com
  2. 2Rhode Island gubernatorial election, 2026 (September... - Ballotpediaballotpedia.org
  3. 32026 election and voting dates - Ballotpediaballotpedia.org
  4. 4RI 2026 GOP Gubernatorial Primary Live Results: Guckian Holds Slight Lead Over Pelino | Across Rhode Island, RI Patchpatch.com
  5. 52026 Rhode Island Governor | Live Election Resultsvotes.decisiondeskhq.com
  6. 6Helena Foulkes - Ballotpediaballotpedia.org
  7. 7Aaron Guckian - Ballotpediaballotpedia.org
  8. 8Governor of Rhode Island | Voter Guide: 2026 Primary Sept. 9rhodeislandcurrent.com
  9. 9Midterms Prediction Markets & Live Odds 2026 | Polymarketpolymarket.com
  10. 10Midterm Election 2026: Polymarket Probability & Market Forecast - Trade the Outcometradetheoutcome.com
  11. 112026 Midterm Prediction Markets: Senate, House, and Gove… | Alphascopealphascope.app
  12. 122026 House Control Betting Volume Surges 10x on Kalshi | Prediction Huntpredictionhunt.com

12. Related News

+85.4pp
Last updated: September 10, 2026, 12:13 UTC

Guckian Primary Win Pushes Nomination Odds to 99% in RI Governor Market

Aaron Guckian’s victory in the Rhode Island Republican gubernatorial primary on Wednesday, September 9, 2026, prompted a near-total repricing in a key prediction market, with contracts for his nominat...