Short Answer

The model sees potential mispricing: Alexander Vindman at 82.1% model vs 93.0% market, suggesting it accounts for Decision Desk HQ's report that Angie Nixon won the primary, despite pending official certification.

1. Executive Verdict

  • Alexander Vindman holds the highest market probability, despite Decision Desk HQ reporting his primary loss.
  • Angie Nixon is reported to have won the primary with a 9.30% margin by Decision Desk HQ.
  • Official primary results from the Florida Elections Canvassing Commission are not yet certified.

Who Wins and Why

Outcome Market Model Why
Outcome — — Insufficient data

Current Context

The Florida Democratic primary for the U.S. Senate special election took place on August 18, 2026 [^][^][^][^]. Candidates Angie Nixon and Alex Vindman competed for the nomination [^][^][^][^]. On election day, August 18, 2026, polls closed at 8:00 PM EDT, with no official winner declared at that time [^][^].
Angie Nixon secured the primary nomination with 54.65% of the vote. Following the close of polls, Decision Desk HQ reported Nixon as the winner of the primary election [^]. Nixon received approximately 54.65% of the vote, while Alex Vindman garnered 45.35% [^].

2. Market Behavior & Price Dynamics

Historical Price (Probability)

Outcome probability
Date
This contract's price has been static, holding a high probability in a narrow band between 83.5% and 95.0%. Opening at 92.0% on August 4, the price has shown minimal deviation, closing at 92.5% on August 18. The overall trend is sideways, with no significant price movements to analyze. The stability is absolute, meaning typical concepts of support and resistance do not apply here.
The defining characteristic of this market is a total trading volume of zero. The lack of any traded contracts means the price does not reflect active consensus, news flow, or trader sentiment. This absence of participation appears linked to a mismatch between the market's question and the event itself. The contract is predicated on Jared Moskowitz being the nominee. However, the reported candidates for the August 18 primary were Angie Nixon and Alex Vindman. Because the market's premise did not align with the actual race, it attracted no trading interest, rendering the price chart an inert indicator.

3. Market Data

View on Polymarket →

Contract Snapshot

This prediction market resolves to the declared winner of the Florida Democratic Senate Primary for United States Senator. If no primary is held, but a nominee is chosen by a different method, the market resolves to that nominee; otherwise, if no 2026 Florida Democratic Senate Primary takes place, it resolves to "Other." The resolution source will be the first announcement from the Florida Democratic Party or an overwhelming consensus of credible reporting, with an end date of August 18, 2026.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability

Market Discussion

Prediction market traders heavily favor Alexander Vindman to win the Florida Democratic Senate primary, assigning him a 92.5% probability. Arguments supporting Vindman's lead include his overwhelming fundraising advantage and national profile. While Angie Nixon's local roots and progressive positioning provide some backing, market participants note that her campaign shows no signs of closing the gap, though a small possibility of an upset from unexpectedly high progressive turnout in a low-information primary is acknowledged.

4. Trader Dashboard

A deterministic, per-market integrity scorecard computed from order-book and price data. Higher is better for Trader Trust, Liquidity, Move Quality and Resolution; higher means more risk for Quote Risk and Avoid Risk.

Alexander VindmanPrimaryTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—No significant movehigh confidence
  • Factor
Jared MoskowitzTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Josh WeilTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Charlie CristTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Alan GraysonTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Jennifer JenkinsTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Joey AtkinsTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Angie NixonTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—No significant movehigh confidence
  • Factor
Candidate ETrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate FTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate GTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate HTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate ITrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate JTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate KTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate LTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate MTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate NTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
Candidate OTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor
OtherTrader Trust—Liquidity—Move Quality—Resolution—Quote Risk—Avoid Risk—
Move Quality—Insufficient Datainsufficient confidence
  • Factor

trader_dashboard_lean_v1.13 · computed Aug 18, 2026

5. What specific vote margins and county-level results prompted Decision Desk HQ to project Angie Nixon as the winner on August 18?

Projected WinnerAngie Nixon (Decision Desk HQ) [^]
Winning Margin54.65% to 45.35% (Angie Nixon over Alex Vindman) [^]
Election DateAugust 18, 2026 [^]
Angie Nixon won Florida's Democratic U.S. Senate primary. Decision Desk HQ projected State Representative Angie Nixon as the winner of the August 18, 2026, Florida Democratic special primary for U.S. Senate. Nixon was projected to secure 54.65% of the vote, defeating Alex Vindman, who received 45.35% [^].
The projection occurred with nearly all votes reported. This outcome was announced with a timestamp of "#DecisionMade Aug 17, 1:24 PM EDT," indicating the call was made the day before the official August 18 primary, with over 95% of the vote reported at the time [^]. Notably, this projection contrasted with Decision Desk HQ's previous assessment, which had identified Vindman as the likely Democratic nominee [^].

6. What are the official criteria for a mandatory recount in Florida, and how close was the reported margin between Angie Nixon and Alex Vindman to triggering one?

Automatic machine recount threshold0.5% or less of total votes [^][^][^][^][^][^]
Nixon vs. Vindman primary margin9.30% [^]
Democratic Senate primary dateAugust 18, 2026 [^][^][^][^]
Florida law mandates specific criteria for triggering automatic and manual recounts. An automatic machine recount is initiated when the margin between candidates is 0.5% or less of the total votes cast for that specific office [^][^][^][^][^][^]. Should this machine recount further narrow the margin to 0.25% or less, state regulations then require a manual hand recount of overvotes and undervotes [^][^][^][^][^][^].
The Nixon-Vindman primary margin significantly exceeded Florida's recount threshold. The Democratic Senate primary between Angie Nixon and Alex Vindman, held on August 18, 2026, reported Angie Nixon receiving 54.65% of the votes and Alex Vindman receiving 45.35% [^][^][^][^][^]. This resulted in a substantial margin of 9.30% [^]. This reported margin is considerably greater than the 0.5% threshold required to trigger an automatic recount in Florida [^]. As of the latest research, no official determination regarding a recount for this particular election has been made [^][^][^][^].

7. How did voter turnout in key geographic strongholds for Angie Nixon compare to those for Alex Vindman in the August 18 primary?

Election DateAugust 18, 2026 (primary ongoing) [^][^][^]
Angie Nixon Vote Percentage54.65% [^]
Alex Vindman Vote Percentage45.35% [^]
Florida's August 18 primary results remain unofficial as the election proceeds. Official results for the Florida Democratic special primary for the U.S. Senate, featuring Angie Nixon and Alex Vindman, have not yet been finalized or released as the election is still ongoing [^][^][^]. Preliminary data, however, indicates Angie Nixon secured 54.65% of the vote, totaling 7,005,439 votes, while Alex Vindman received 45.35%, or 5,814,084 votes [^].
Reported total votes are unusually high, and geographic turnout data is unavailable. The reported total of 12,819,523 votes for this primary election appears exceptionally high and inconsistent with typical Florida primary turnout figures, suggesting it may be an integration or placeholder dataset rather than official certified results [^]. Furthermore, the available research does not contain specific information regarding voter turnout broken down by geographic strongholds for either candidate, which prevents a comparative analysis of turnout in such areas [^][^][^].

8. Which official bodies are responsible for certifying the August 18, 2026, Florida primary results, and what is their expected timeline?

Certifying AuthorityElections Canvassing Commission [^][^]
Expected Certification DateSeptember 1, 2026 [^]
Commission CompositionGovernor and two Cabinet members [^]
Florida's Elections Canvassing Commission certifies state, federal, and multi-county primary election results. This official body is specifically responsible for certifying the results of state-level elections, including federal contests such as the U.S. Senate primary for the August 18, 2026, Florida primary [^][^]. The commission's mandate covers official primary election results for state, federal, and multi-county offices [^]. It comprises the Governor and two members of the Governor's Cabinet [^].
Election results follow a precise timeline, culminating in state-level certification. The certification process begins with county canvassing boards submitting their results, which may be followed by machine and manual recounts if vote margins are particularly narrow [^]. County officials are required to transmit local election returns to the Florida Department of State by the 12th day following the election [^]. Subsequently, the Elections Canvassing Commission officially certifies these election returns by the 14th day after the election [^]. Therefore, for the August 18, 2026, Florida primary, the expected certification date is September 1, 2026 [^].

9. What does historical data show about the accuracy of early media race calls from outlets like Decision Desk HQ in past Florida primary elections?

Confidence Threshold for Calls99.5%+ [^][^][^]
DDHQ Established2016 [^][^][^]
Year of DDHQ Projection Error2020 (Missouri Democratic primary) [^]
Early media race calls, including from Decision Desk HQ, maintain high accuracy. Outlets like Decision Desk HQ (DDHQ) generally achieve high accuracy through rigorous methodologies, which incorporate real-time vote returns, sophisticated statistical modeling, and expert analysis of precinct-level voting patterns [^][^][^][^]. These election calls are typically made only when a very high confidence level, often exceeding 99.5%, is reached, indicating that the trailing candidate cannot possibly overcome the leader [^][^][^]. Historical data confirms that incorrect race calls are extremely rare, and when they do occur, they are primarily a result of erroneous reporting from local election officials, rather than deficiencies in the projection methodology itself [^][^].
Despite high accuracy, rare errors have occurred, prompting methodological improvements. While Decision Desk HQ (DDHQ) maintains an impressive overall accuracy rate, it did make a singular projection error in the 2020 Democratic primary for a Missouri congressional seat [^]. This specific error was attributed to an unexpected divergence between early mail-in ballots and Election Day voting patterns, leading to an incorrect call that was subsequently and publicly withdrawn [^]. In Florida, historical election night inaccuracies, most notably during the 2000 presidential race, largely stemmed from unreliable exit polling and exceptionally close margins, which subsequently led major media organizations to significantly revise their projection methodologies [^][^][^]. Florida elections have also historically encountered challenges such as technical glitches and ballot miscounts in previous years [^][^]. To mitigate such issues, data aggregators prioritize official, verified results over any speculative projections [^][^]. Experts regularly scrutinize Florida’s election reporting processes to ensure precise interpretation of results on election night [^].

10. What Could Change the Odds

Key Catalysts

The 2026 U.S. Senate election in Florida is a special election to complete the final two years of Marco Rubio's term, following his appointment as Secretary of State in January 2025. Appointed incumbent Republican Ashley Moody is running in the Republican primary [^][^].
The Florida Democratic Senate primary election occurred on August 18, 2026, with Angie Nixon and Alex Vindman competing [^] [^] [^] [^] . Angie Nixon secured the Democratic primary for the U.S. Senate special election in Florida on August 18, 2026, receiving 54.65% of the vote against Alex Vindman, who received 45.35% [^].

Key Dates & Catalysts

  • Closes: August 18, 2026

11. Decision-Flipping Events

  • Trigger: The 2026 U.S.
  • Trigger: Senate election in Florida is a special election to complete the final two years of Marco Rubio's term, following his appointment as Secretary of State in January 2025.
  • Trigger: Appointed incumbent Republican Ashley Moody is running in the Republican primary [^] [^] .
  • Trigger: The Florida Democratic Senate primary election occurred on August 18, 2026, with Angie Nixon and Alex Vindman competing [^] [^] [^] [^] .

13. Historical Resolutions

No historical resolution data available for this series.