Crossbook
live

Will Victor Mellor be the RI-02 Republican nominee?

Crossbook compares what two exchanges, Polymarket and Kalshi, charge for the same event, and publishes a permanent scored record of its own forecasts under published rules.

Tracked on one venue, with Crossbook's own call on the record.

Settled

This market has settled and is no longer listed, so there is no current price to show. What Crossbook called, and when, is below.

Crossbook forecast

44.0%against a market price of 18.5% at the timeYES

Logged 7 Sept 2026, 01:56 UTC · Brier 0.3136

  • The only polling available shows Skoly leading Mellor 29%-22% with 48% undecided; the 7-point lead is within the stated margin of error, so this is weak evidence of a Skoly edge rather than a decisive one.
  • The state Republican Party endorsed Skoly 44-19 at its convention, and Mellor withdrew from endorsement consideration; party endorsements carry outsized weight in low-turnout primaries where the most engaged partisans vote.
  • Mellor holds an enormous financial advantage ($1.44M cash on hand vs ~$52,700), which is significant signal for reaching the large undecided bloc in the final weeks, though his funds are mostly self-loans, indicating weak organic support.
  • Mellor trailed in polling despite vastly outspending Skoly, which suggests money has not been converting efficiently into votes and somewhat discounts the cash advantage.
  • Endorsements split: Mellor got the Fraternal Order of Police, Skoly got the House Minority Whip; neither is clearly decisive in a small Republican electorate (~16% of registered voters).
  • Late-campaign disputes over Mellor's military record and his skipping the party debate add uncertainty but are narrative noise with unclear directional effect.
  • With the primary on September 9 and nearly half the electorate undecided in the last poll, there is substantial residual variance; this argues against extreme probabilities in either direction.

What would change it: A finalized or near-final vote count or credible late polling showing one candidate with a clear lead among decided plus late-breaking undecided voters would move this sharply; specifically, official results on September 9 will settle it directly.

Settlement source

+25.5 probability points from the market at generation · med confidence · Polymarket

Base rate: In two-candidate party primaries with no incumbent, each candidate starts near 50%, with party-endorsed candidates historically winning such contests somewhat more often than not.

Chosen by hand.

Settlement

Every answer this call has been given, oldest first. Nothing is edited: a correction is a new entry beside the one it replaces.

  1. NOsettled 11 Sept 2026, 04:04 UTC · recorded 11 Sept 2026, 04:04 UTC · entered by handsettlement

  2. YESsettled 10 Sept 2026, 02:44 UTC · recorded 5 Oct 2026, 01:23 UTC · read from the venuesettlement

    Corrected against Polymarket's settlement. Recorded NO on 11 Sept 2026; Polymarket settled YES on 10 Sept 2026.

What this call was reading

  • A Salve Regina University Pell Center poll conducted August 3-11, 2026 among 857 likely primary voters found Stephen Skoly leading Victor Mellor 29% to 22%, with 48% undecided, a 7-point margin within the poll's 5.6-point margin of error for Republican-specific questions. as of 2026-08-18 · rhodeislandcurrent.com · within 90 days of this call
  • The Rhode Island Republican Party endorsed Dr. Stephen Skoly for the 2nd Congressional District at its state convention in June 2026 on a 44-19 vote. as of 2026-06-25 · rhodeislandcurrent.com · within 90 days of this call
  • Victor Mellor withdrew from consideration for the state GOP endorsement on June 21, 2026 after the party's nominating committee recommended Skoly. as of 2026-06-21 · rhodeislandcurrent.com · within 90 days of this call
  • As of June 30, 2026, Victor Mellor's campaign reported $1.44 million cash on hand compared to about $52,700 for Stephen Skoly, with Mellor's nearly $2.9 million in total receipts coming mostly from his own contributions and loans. as of 2026-06-30 · rhodeislandcurrent.com · within 90 days of this call
  • In July 2026 the Rhode Island State Fraternal Order of Police endorsed Mellor at its 37th Biennial Conference, while Skoly received the endorsement of Rhode Island House Minority Whip Gordon Rogers around the same time. as of 2026-08-11 · rhodeislandcurrent.com · within 90 days of this call
  • Republicans make up only 16% of the roughly 366,603 registered voters in Rhode Island's 2nd Congressional District, with most voters unaffiliated and 30% registered Democrats. as of 2026-08-11 · progressive-charlestown.com · within 90 days of this call
  • Mellor declined to participate in an August 2026 debate organized by the Rhode Island Republican Party against Skoly, objecting to the party hosting it after it had endorsed his opponent. as of 2026-08-11 · rhodeislandcurrent.com · within 90 days of this call
  • In early September 2026, days before the primary, Mellor and Skoly publicly disputed Mellor's Marine Corps service record and rank, with Mellor releasing his DD-214 showing he held the rank of sergeant. as of 2026-09-03 · rhodeislandcurrent.com · within 90 days of this call
  • The RI-02 Republican primary is a two-candidate race between Victor Mellor and Dr. Stephen Skoly, scheduled for September 9, 2026. as of 2026-09-07 · rhodeislandcurrent.com · within 90 days of this call

This market has settled. The page is kept as a record of what the market said while the question was open, and of what Crossbook called.

Related markets

Crossbook publishes every forecast it makes, timestamped before the answer is known and scored against the market afterwards. See the public record and the rules it is held to.

This call is line t-0176 of the public append-only ledger, committed when it was published. It appears on the record alongside every other call, resolved and open.