2028 U.S. Presidential Election winner?
Short Answer
Both the model and the market expect Marco Rubio to win the 2028 U.S. Presidential Election, with no compelling evidence of mispricing.
1. Executive Verdict
- Since last update (~143d): Gavin Newsom's edge flipped as market probability declined -7.0pp, while our model rose +2.3pp (market_led).
- Marco Rubio's model-led probability increased +6.0pp, widening his edge as the market remained flat.
- Jon Ossoff saw model (+7.5pp) and market (+8.0pp) probabilities increase significantly.
- Overall confidence decreased by -2.0pp; six new candidate outcomes were added.
- Marco Rubio leads Republican polls in New Hampshire and a 2028 GOP straw poll.
- J.D. Vance actively builds fundraising networks, raising over $60 million by June 2026.
- Gavin Newsom maintains high-profile media and PAC activity; term-limited in 2026.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| Marco Rubio | 17.0% | 25.5% | Marco Rubio gains significant ground in polls, though specific fundraising figures are not detailed. |
| Jon Ossoff | 11.0% | 10.9% | Jon Ossoff is a potential Democratic contender, but specific polling or fundraising details are not provided. |
| Gavin Newsom | 11.0% | 13.6% | Gavin Newsom is a leading Democratic prospect with national PAC activity and will be term-limited in 2026. |
| J.D. Vance | 19.0% | 16.9% | J.D. Vance builds fundraising as RNC finance chair, but recent polls indicate softening support. |
| Alexandria Ocasio-Cortez | 7.8% | 7.9% | Alexandria Ocasio-Cortez is a potential Democratic contender, but specific polling or fundraising details are not provided. |
Current Context
The 2028 U.S. Presidential Election is set for November 7, 2028. The election is scheduled for November 7, 2028, with the winner to be sworn into office on January 20, 2029 [^][^][^][^][^]. As of August 6, 2026, no major candidates have officially declared their campaigns for the election, with the field generally expected to form after the 2026 midterm elections [^][^][^][^]. While formal announcements are pending, 175 candidates had filed with the Federal Election Commission (FEC) to run by August 2025, though none were considered noteworthy at that time [^].
Prediction markets indicate early leaders, but Trump is ineligible. Prediction markets, including Polymarket and Kalshi, currently list J.D. Vance and Marco Rubio among the leading potential candidates for the 2028 election [^][^][^][^]. Implied probabilities for these and other potential candidates fluctuate with real-time trading [^][^][^]. Notably, Donald Trump is constitutionally ineligible to run for a third term due to the 22nd Amendment to the U.S. Constitution [^][^].
Key issues like AI are emerging for the 2028 election. Ahead of the election, political uncertainty and social opposition may influence project timelines for hyperscalers [^]. Issues such as artificial intelligence are expected to be a central theme in the 2028 presidential election cycle, with discourse developing over the next 24 months [^][^]. The Associated Press (AP) is the primary organization that monitors, analyzes, and officially declares the results of U.S. presidential elections, as no single federal agency performs this function [^].
2. Market Behavior & Price Dynamics
Historical Price (Probability)
Outcome probability
Date
This market for the 2028 U.S. Presidential Election winner is defined by a lack of price discovery. The contract has traded in an extremely narrow 100 basis point range between 11.0% and 12.0% since inception. The price opened at 12.0% and currently stands at the same level, indicating a sideways trend with no directional conviction. The only notable price movement was a brief dip to 11.0% around July 30, 2026. The provided context offers no specific catalyst for this minor fluctuation, which is consistent with a market that has no declared major candidates to price.
Clear support and resistance levels have formed at 11.0% and 12.0%, respectively. These boundaries have contained all trading activity. Volume patterns are inconsistent in the sample data, though the temporary move down to the 11.0% support level occurred on higher volume than the periods immediately before and after it. This suggests a brief increase in activity at the lower end of the range, but the quick, low-volume recovery to 12.0% shows the move lacked staying power.
The price action suggests market sentiment is in a holding pattern. With the election still far off and the field of candidates undefined, the stable, low probability pricing reflects a lack of fundamental information to drive valuation. The market is effectively dormant, awaiting significant political developments, such as candidate announcements, before a clear trend or breakout from the current range can be expected. Total volume of 158,204 contracts shows a baseline level of interest, but the price chart itself reveals no conviction.
3. Market Data
Contract Snapshot
The provided page content describes prediction markets for individual candidates to be the "2028 U.S. Presidential Election winner," but it does not explicitly detail the specific conditions that trigger a 'Yes' or 'No' resolution for a given candidate. The key date mentioned is the 2028 U.S. Presidential Election, with a maximum payout date of November 7, 2029. No other special settlement conditions are explicitly stated in the provided text.
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Last trade probability |
|---|---|---|---|
| J.D. Vance | $0.19 | $0.82 | 19% |
| Marco Rubio | $0.17 | $0.84 | 17% |
| Gavin Newsom | $0.12 | $0.89 | 11% |
| Jon Ossoff | $0.11 | $0.91 | 11% |
| Alexandria Ocasio-Cortez | $0.08 | $0.93 | 8% |
| Kamala Harris | $0.05 | $0.95 | 5% |
| Ron DeSantis | $0.04 | $0.96 | 4% |
| Mark Kelly | $0.03 | $0.97 | 3% |
| Andy Beshear | $0.03 | $0.97 | 3% |
| Donald J. Trump | $0.03 | $0.97 | 3% |
| Pete Buttigieg | $0.03 | $0.97 | 3% |
| Josh Shapiro | $0.03 | $0.97 | 3% |
| Tucker Carlson | $0.02 | $0.98 | 2% |
| Rahm Emanuel | $0.02 | $0.99 | 2% |
| Gretchen Whitmer | $0.02 | $0.99 | 2% |
| J.B. Pritzker | $0.02 | $0.99 | 2% |
| Wes Moore | $0.01 | $0.99 | 1% |
| Donald J. Trump Jr. | $0.01 | $0.99 | 1% |
| Hunter Biden | $0.01 | $1.00 | 1% |
| James Talarico | $0.01 | $1.00 | 1% |
| Ro Khanna | $0.01 | $1.00 | 1% |
| Thomas Massie | $0.01 | $1.00 | 1% |
| Glenn Youngkin | $0.01 | $0.99 | 1% |
| Tulsi Gabbard | $0.01 | $1.00 | 1% |
| Greg Abbott | $0.00 | $1.00 | 0% |
| Jamie Dimon | $0.00 | $1.00 | 0% |
| Nikki Haley | $0.00 | $1.00 | 0% |
| Stephen A. Smith | $0.00 | $1.00 | 0% |
| Vivek Ramaswamy | $0.00 | $1.00 | 0% |
| Tim Walz | $0.00 | $1.00 | 0% |
Market Discussion
As of August 2026, prediction markets for the 2028 U.S. Presidential Election show a highly competitive and fluid field with no clear consensus favorite, though a Democratic presidential victory currently appears favored over a Republican one [^][^][^][^][^]. Leading individual candidates often cited include J.D.
4. How might the 2026 midterm election results reshape the field of potential 2028 presidential candidates?
| Leading Republican Candidates (Aug 2026) | VP JD Vance (R), Sec. of State Marco Rubio (R) [^][^][^] |
|---|---|
| Leading Democratic Candidate (Aug 2026) | California Gov. Gavin Newsom (D) [^][^][^] |
| 2028 Campaign Announcements (Aug 2026) | None noteworthy [^] |
The 2026 midterm elections will significantly reshape the 2028 presidential landscape. These elections are poised to be a major catalyst, influencing party momentum, donor confidence, and the viability of potential candidates for the 2028 presidential race [^][^]. Performance in the midterms is expected to either bolster candidates who succeed or narrow the path for those with poor showings [^][^]. A critical factor in this influence is the intense mid-decade congressional redistricting battles, where both parties are actively working to secure favorable maps for 2028, first testing them in the 2026 midterms [^][^][^][^]. For example, House Minority Leader Hakeem Jeffries has already prioritized a 'decisive and overwhelming' response to Republican redistricting efforts in preparation for the upcoming 2028 cycle [^].
Prediction markets currently suggest a competitive 2028 presidential election field. As of August 2026, these markets indicate a competitive landscape for the 2028 U.S. Presidential Election, even though no significant campaign announcements have been made despite nearly 200 candidates having filed with the FEC by August 2025 [^]. Vice President JD Vance (R) and Secretary of State Marco Rubio (R) are frequently mentioned as leading Republican contenders, while California Governor Gavin Newsom (D) consistently ranks as a top Democratic prospect [^][^][^]. Although historical data indicates that midterm outcomes do not reliably predict presidential election winners, the 2026 results will nonetheless profoundly affect internal party environments, candidate recruitment strategies, and the strategic focus for both parties heading into the 2028 cycle [^][^].
5. What early polling and fundraising data support the current prediction market odds for Gavin Newsom and J.D. Vance?
| J.D. Vance 2028 Presidential Odds | 17–20% [^][^][^] |
|---|---|
| Gavin Newsom 2028 Presidential Odds | 11–12% [^][^][^] |
| J.D. Vance GOP Nomination Odds | 41% on Kalshi [^] |
Prediction markets show J.D. Vance leading Gavin Newsom for the 2028 presidency. As of August 2026, J.D. Vance's odds of winning the 2028 U.S. Presidential Election are estimated at 17–20%, while Gavin Newsom's odds typically range from 11–12% [^][^][^]. However, at this early stage of the election cycle, there is currently no systematic polling or documented fundraising surge specifically supporting these prediction market odds for either candidate [^][^][^]. Official campaign finance data for the 2028 U.S. Presidential election is not yet available via the Federal Election Commission (FEC) as of August 6, 2026, given that candidates have not reached the primary phase where such reporting is common [^][^][^][^].
J.D. Vance shows strong GOP nomination odds despite recent polling dips. Vance's standing in the 2028 GOP nomination market remains robust at approximately 41% [^]. Nevertheless, recent polling indicates softening support among Republican voters, with Secretary of State Marco Rubio gaining ground. For example, Vance trailed Rubio by 10 points in New Hampshire in July 2026, and Rubio also holds a 36-point lead over Vance in a new 2028 GOP straw poll [^][^][^][^]. Vance is actively building fundraising networks through his role as finance chair of the Republican National Committee (RNC), having helped raise over $60 million and headlining high-profile donor events, including a $4.2 million fundraiser in Palo Alto in June 2026 [^].
Gavin Newsom remains a top Democratic contender without formal declaration. He is frequently cited as a top-tier contender for the 2028 Democratic nomination, though he has not formally declared his candidacy [^][^][^]. Newsom's campaign activity is currently focused on the 2026 midterm elections [^][^][^]. He faces competition in both polling and market sentiment from other figures such as Jon Ossoff and Kamala Harris [^][^][^]. Similar to J.D. Vance, there is currently no systematic polling or documented fundraising surge specifically supporting Newsom's 2028 prediction market odds at this early stage of the election cycle [^][^][^].
6. How do the policy platforms and voting records of potential Democratic contenders Gavin Newsom and Gretchen Whitmer compare?
| Potential 2028 Presidential Candidates | Gavin Newsom, Gretchen Whitmer (as of August 6, 2026) [^][^] |
|---|---|
| Gubernatorial Term End | 2026 (Newsom, Whitmer) [^][^][^] |
| Distinct Political Style | Newsom (combative, national-facing), Whitmer (broad appeal, executive experience in swing state) [^] |
Gavin Newsom and Gretchen Whitmer are potential 2028 presidential contenders with distinct styles. Both are concluding their second gubernatorial terms in 2026 and are identified as prospective candidates for the presidency [^][^][^][^][^]. Newsom is often characterized as a combative, national-facing politician with a significant media presence, while Whitmer is viewed as possessing broader general election appeal, leveraging her executive experience in Michigan [^]. Both governors have engaged in national political activities, with Newsom establishing the Campaign for Democracy PAC and Whitmer launching the Fight Like Hell PAC [^][^].
Specific policy details for direct comparison remain limited in the provided research. While both governors have extensive political careers, comprehensive information on their overall policy platforms or detailed voting records for a direct comparison is not available. Noteworthy individual actions include Gretchen Whitmer's sponsorship of the 2012 Michigan Collective Bargaining Amendment during her tenure as Senate Majority Leader [^]. Gavin Newsom's time as California Governor is marked by his successful navigation of a recall effort in 2021 and his subsequent re-election in 2022 [^]. The available information does not provide extensive policy details beyond these specific milestones.
7. What is the historical success rate for incumbent Vice Presidents, like Kamala Harris, in securing their party's nomination and winning the presidency?
| Sitting VPs elected president since 1836 | One (George H.W. Bush in 1988) [^][^][^][^] |
|---|---|
| VPs who attempted presidential run | 22 out of 50 [^][^] |
| VPs earning party nomination | 11 [^][^] |
Incumbent Vice Presidents have historically faced a mixed record in their presidential aspirations. Since 1836, only one sitting Vice President, George H.W. Bush in 1988, has successfully been elected president [^][^][^][^]. While Vice Presidents often succeed in securing their party's nomination, they generally encounter significant challenges in winning the general election [^][^][^][^].
Many Vice Presidents attempt presidential runs, with varied nomination success. Of the 50 total U.S. Vice Presidents, 22 have attempted a presidential run after their tenure, with 11 successfully earning their party's primary nomination [^][^]. The path to nomination has also proved challenging for some who ascended to the presidency from the vice presidency; for instance, five such individuals faced difficulties or failure in securing their party's renomination [^][^].
8. How do the potential endorsement landscapes for J.D. Vance and Josh Shapiro differ among key party leaders and interest groups?
| J.D. Vance Republican Polling | Top choice among Republican voters as of August 2026 [^][^][^] |
|---|---|
| Josh Shapiro Donor Support | Traditional Democratic donors and party strategists [^] |
| Josh Shapiro Name Recognition | Relatively low outside of the Northeast during 2024 cycle [^] |
J.D. Vance is a strong contender for the 2028 Republican presidential nomination. As of August 2026, he consistently polls as the top choice among Republican and Republican-leaning voters, although his support showed some softening in early 2026 polling [^][^][^]. Vance has expressed confidence in receiving support from President Trump [^]. His public profile has been elevated through his role as Vice President, and he actively issues endorsements in various federal and state elections, focusing on aligning with Republican candidates [^][^].
Josh Shapiro is a major Democratic prospect facing party divisions within his party. He is widely considered a significant potential candidate for the 2028 Democratic nomination, perceived as a moderate leader capable of bridging political divides [^]. Shapiro enjoys strong backing from traditional Democratic donors and party strategists [^]. However, he faces pressure from the more progressive wing of his party due to his moderate compromises [^][^]. Shapiro's endorsement activities are concentrated on Democratic candidates in Pennsylvania and key national races [^], though polling during the 2024 cycle indicated that his national name recognition was relatively low outside of the Northeast [^].
9. What Could Change the Odds
Key Catalysts
The 2028 U.S. presidential election is scheduled for November 7, 2028, and currently has no winner as the election has not occurred [^][^][^][^]. Prediction markets as of mid-2026 show no dominant frontrunner, with candidates like J.D. Vance and Marco Rubio trading in the 15-20 cent range, indicating a highly uncertain, open-field race [^][^][^][^][^][^]. Initial catalysts for the 2028 election cycle include the November 2026 midterm elections, which will serve as a major test of candidate viability and party messaging [^][^]. This will be followed by candidacy declarations in late 2026 and early 2027, and the first primary debates in mid-2027 [^][^].
Bullish or bearish sentiment in these markets is driven by specific catalysts [^] [^] [^] [^] . These include primary election results, starting with Iowa/New Hampshire in early 2028, economic data such as unemployment and CPI, and geopolitical developments [^][^][^][^]. Candidate consolidation within the currently open Democratic field also acts as a catalyst [^][^][^][^].
Key Dates & Catalysts
- Expiration: November 07, 2029
- Closes: November 07, 2029
10. Decision-Flipping Events
- Trigger: The 2028 U.S.
- Trigger: Presidential election is scheduled for November 7, 2028, and currently has no winner as the election has not occurred [^] [^] [^] [^] .
- Trigger: Prediction markets as of mid-2026 show no dominant frontrunner, with candidates like J.D.
- Trigger: Vance and Marco Rubio trading in the 15-20 cent range, indicating a highly uncertain, open-field race [^] [^] [^] [^] [^] [^] .
12. Historical Resolutions
No historical resolution data available for this series.
