2028 Republican presidential nominee
Short Answer
1. Market Behavior & Drivers
- Since last update (~133d): J.D. Vance's market probability rose +3.6pp (market_led), widening the edge against the model.
- Marco Rubio's model probability decreased -3.5pp, causing the edge to flip (model_led).
- The overall confidence score decreased -3.0pp as four new outcomes were added.
- J.D. Vance leads prediction markets, aligned with America First populism.
- Ron DeSantis's viability depends on 2026 Florida midterm election results.
- Donald J. Trump's endorsement remains a key catalyst for his son.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| Marco Rubio | 26.0% | 25.2% | His extensive experience and moderate appeal may attract a broad range of Republican voters. |
| Tucker Carlson | 3.1% | 3.6% | A prominent media voice, he could leverage his platform for a populist presidential run. |
| Donald J. Trump | 2.6% | 1.3% | An unprecedented third bid for the presidency is possible given his continued influence. |
| J.D. Vance | 41.0% | 37.0% | His rising profile and populist alignment could position him strongly for the nomination. |
| Thomas Massie | 1.4% | 1.6% | His libertarian-conservative stance resonates with a specific segment of the Republican base. |
Current Context
Sources (15)
- 1Timeline of the 2028 United States presidential electionen.wikipedia.org
- 2Presidential election, 2028ballotpedia.org
- 3When Is the 2028 Presidential Election? Date, Countdown & Key Dates | Who's Running 20282028tracker.com
- 4Are They Running for President in 2028? Candidate Status Tracker | Who's Running 20282028tracker.com
- 5Rubio catches up to Vance in new 2028 Republican presidential pollusatoday.com
- 6Will They Run for President in 2028? Candidate-by-Candidate Tracker | Who's Running 20282028tracker.com
- 72028 Presidential Candidates: Full List by Party | Who's Running 20282028tracker.com
- 82028 Republican presidential nominee Odds & Predictionskalshi.com
- 9Republican Presidential Nominee 2028 Predictions & Oddspolymarket.com
- 10Who will be the 2028 Republican nominee?predictit.org
- 11ElectionMarkets - Live Prediction Market Dataelection.markets
- 122028 Republican Nominee Odds: AI Verdict Vs. Kalshioddsshopper.com
- 13Almost 200 candidates have filed to run in the 2028 presidential election - Ballotpedia Newsnews.ballotpedia.org
- 14Daily Brew: August 28, 2025ballotpedia.org
- 15Sarah Huckabee Sanders tests political waters by headlining GOP event in early-voting South Carolina | The Associated Pressap.org
2. Price Chart
Historical Price (Probability)
3. Market Data
Contract Snapshot
Based on the provided page content, the specific rules for triggering a YES or NO resolution for the "2028 Republican presidential nominee" market are not detailed. The text does not specify what criteria determine if a candidate officially becomes the nominee or not, nor does it outline any special settlement conditions. The only key date mentioned is the maximum payout date of November 7, 2028.
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Last trade probability |
|---|---|---|---|
| J.D. Vance | $0.41 | $0.60 | 41% |
| Marco Rubio | $0.27 | $0.74 | 26% |
| Ron DeSantis | $0.05 | $0.95 | 5% |
| Donald J. Trump Jr. | $0.04 | $0.96 | 4% |
| Tucker Carlson | $0.03 | $0.97 | 3% |
| Donald J. Trump | $0.03 | $0.97 | 3% |
| Thomas Massie | $0.01 | $0.99 | 1% |
| Ivanka Trump | $0.01 | $0.99 | 1% |
| Ted Cruz | $0.01 | $0.99 | 1% |
| Candace Owens | $0.01 | $1.00 | 1% |
| Glenn Youngkin | $0.01 | $0.99 | 1% |
| Jeff Bezos | $0.01 | $1.00 | 1% |
| Lara Trump | $0.01 | $1.00 | 1% |
| Marjorie Taylor Greene | $0.01 | $0.99 | 1% |
| Spencer Pratt | $0.01 | $1.00 | 1% |
| Josh Hawley | $0.01 | $0.99 | 1% |
| Brian Kemp | $0.01 | $0.99 | 1% |
| Sarah Huckabee Sanders | $0.01 | $1.00 | 1% |
| Tulsi Gabbard | $0.01 | $0.99 | 1% |
| Erika Kirk | $0.01 | $1.00 | 1% |
| Greg Abbott | $0.01 | $1.00 | 1% |
| Rand Paul | $0.01 | $1.00 | 1% |
| Steve Bannon | $0.01 | $1.00 | 1% |
| Vivek Ramaswamy | $0.01 | $1.00 | 1% |
| Byron Donalds | $0.00 | $1.00 | 0% |
| Nikki Haley | $0.00 | $1.00 | 0% |
| Pete Hegseth | $0.00 | $1.00 | 0% |
| Robert F. Kennedy Jr. | $0.00 | $1.00 | 0% |
| Tom Cotton | $0.00 | $1.00 | 0% |
| Elise Stefanik | $0.00 | $1.00 | 0% |
| Elon Musk | $0.00 | $1.00 | 0% |
| Katie Britt | $0.00 | $1.00 | 0% |
| Mike Pence | $0.00 | $1.00 | 0% |
| Eric Trump | $0.00 | $1.00 | 0% |
| Kristi Noem | $0.00 | $1.00 | 0% |
| Matt Gaetz | $0.00 | $1.00 | 0% |
| Nicki Minaj | $0.00 | $1.00 | 0% |
| John Thune | $0.00 | $1.00 | 0% |
Market Discussion
As of August 2026, prediction markets consistently identify Vice President J.D. Vance as the frontrunner for the 2028 Republican presidential nomination, typically holding 36-43% implied probability, with Secretary of State Marco Rubio considered his primary challenger at 27-30% [1][2][3][4]. President Donald Trump has remained noncommittal regarding a successor, often musing about both Vance and Rubio [5][6]. While no noteworthy candidates have officially announced their campaigns as of August 2026, the race is in its nascent stages, with figures like Sarah Huckabee Sanders frequently mentioned as potential contenders [7][8][9][10].
Sources (10)
- 12028 Republican presidential nominee Odds & Predictionskalshi.com
- 2Who Will Win the 2028 GOP Nomination? Markets Say Vancewsn.com
- 3Polymarket Traders Make JD Vance the Clear 2028 Republican Favorite - Frontierbeatfrontierbeat.com
- 4Vance's Edge in 2028 Republican Presidential Nominee Race Are Better Than Odds Suggestactionnetwork.com
- 5Who will be the Republican presidential nominee in 2028?...instagram.com
- 6Vance or Rubio? Trump muses on successor as the 'kids' fill bigger rolesinquirer.com
- 7Almost 200 candidates have filed to run in the 2028 presidential election - Ballotpedia Newsnews.ballotpedia.org
- 8Sarah Huckabee Sanders tests political waters by headlining GOP event in early-voting South Carolina | The Associated Pressap.org
- 9Presidential candidates, 2028ballotpedia.org
- 10Prediction markets in the 2024 Republican presidential...ballotpedia.org
4. Trust Index
A named participant can trade an outcome they can influence.
Integrity risk· Participant influence
Trust score capped by Market integrity (20).
Includes the cost to trade: a $10,000 order can't be filled here because the order book is too thin.
Market integrity 20 is below the safety floor of 30, so the score can't exceed 40.
5. How do the gubernatorial records and national fundraising networks of Greg Abbott and Glenn Youngkin position them for a potential 2028 run?
| Greg Abbott - Governor of Texas since | 2015 [1] |
|---|---|
| Glenn Youngkin - Virginia Gov Election | 50.57% (2021) [2] |
| 2028 Republican Nomination Probability | 1% or less (as of Aug 2026) [3] |
Sources (12)
- 1How Texas' Greg Abbott Emerged as a Powerhouse...governing.com
- 22021 Gubernatorial General Election Results - Virginiauselectionatlas.org
- 32028 Republican Nominee: Odds & Probabilitychanceindex.com
- 4Youngkin touts Virginia record in Iowa, land of presidential...washingtonpost.com
- 5Youngkin's term as governor marked by economic wins...virginiabusiness.com
- 6Texas gubernatorial election, 2018 - Ballotpediaballotpedia.org
- 7Dave Leip's Atlas of U.S. Presidential Elections - 2018 Gubernatorial General Election Election Results - Texasuselectionatlas.org
- 8Form 1 for GREG ABBOTT PRESIDENT CAMPAIGNdocquery.fec.gov
- 9STATEMENT OFdocquery.fec.gov
- 10State of Election Administration Legislation 2024 Year-End Report:Vetoes and veto overrides - Ballotpediaballotpedia.org
- 11Presidential election in Virginia, 2024ballotpedia.org
- 12FEC Form 2 for Report FEC-1547665docquery.fec.gov
6. What polling data and early fundraising metrics from 2025-2026 support J.D. Vance's current frontrunner status for the 2028 nomination?
| Prediction Market Probability | 36% to 43% (as of August 6, 2026) [1][2][3][4] |
|---|---|
| Polling Status | Mixed, volatile, competitive with Marco Rubio [5][6][7] |
| Official Campaign Launch | Not launched; awaiting post-midterm decision [5][6][8] |
Sources (10)
- 1Polymarket Traders Make JD Vance the Clear 2028 Republican Favorite - Frontierbeatfrontierbeat.com
- 2Republican Presidential Nominee Odds for 2028federalnewsnetwork.com
- 3ElectionMarkets - Live Prediction Market Dataelection.markets
- 42028 Republican Presidential Nominee Odds & Predictions 2028 | AllTopalltop.com
- 5New poll complicates Vance's status as Trump's likely 2028...foxnews.com
- 6Rubio leads Vance by 36 points in new 2028 GOP straw pollthehill.com
- 7Marco Rubio Or JD Vance? New Poll Reveals Pick For 2028 Republican Presidential Race | Putnam Daily Voicedailyvoice.com
- 8Vance's Edge in 2028 Republican Presidential Nominee Race Are Better Than Odds Suggestactionnetwork.com
- 9Presidential candidates, 2028ballotpedia.org
- 10Almost 200 candidates have filed to run in the 2028 presidential election - Ballotpedia Newsnews.ballotpedia.org
7. What outcomes in the 2026 midterm elections could significantly boost or damage the presidential prospects of governors like Ron DeSantis and Sarah Huckabee Sanders?
| Democratic House Majority Probability | 62% (current environment) [1] |
|---|---|
| Generic Congressional Ballot | Democrats lead by 4% [1][2] |
| Trump Approval Rating | 42% approval, 55% disapproval [1][2] |
Sources (17)
- 12026 U.S. House Forecast | Decision Desk HQvotes.decisiondeskhq.com
- 2Decision Desk HQ Releases 2026 Congressional Forecast Model | DDHQdecisiondeskhq.com
- 3Ron DeSantis 2028 Presidential Odds - Desantis Election Oddselectionodds.com
- 4'Not thinking about anything': Ron DeSantis talks 2028 plansfloridapolitics.com
- 5Odds for Republican Nominee After State of the Union Addressfederalnewsnetwork.com
- 6Tracking Republican Nominee Odds as Vance Widens the Gapfederalnewsnetwork.com
- 7Redistricting is rampant ahead of the US House midterm elections. What states are taking action? | The Associated Pressap.org
- 8Redistricting ahead of the 2028 elections - Ballotpediaballotpedia.org
- 9Trump's approval on economy falls in AP-NORC poll, showing new warning signs for president | The Associated Pressap.org
- 10Democrats have the second-highest generic ballot lead in May of any midterm year - Ballotpedia Newsnews.ballotpedia.org
- 112028 Presidential Candidates: Full List by Party | Who's Running 20282028tracker.com
- 12Will J.D. Vance Win the 2028 Republican Presidential Nomination?lines.com
- 13A look at gubernatorial battlegrounds in 2026 - Ballotpedia Newsnews.ballotpedia.org
- 14A look at this year's gubernatorial battlegrounds - Ballotpedia Newsnews.ballotpedia.org
- 15Election 2026 Polls - Dave Leip's Atlas of U.S. Presidential Electionsuselectionatlas.org
- 16Republican Presidential Nominee 2028 Predictions & Oddspolymarket.com
- 17Who will be the 2028 Republican nominee?predictit.org
8. How do J.D. Vance's and Marco Rubio's policy platforms and appeal to different Republican factions compare ahead of the 2028 primary?
| J.D. Vance 2028 Nomination Odds | 39-43% (early August 2026) [1][2][3] |
|---|---|
| Marco Rubio 2028 Nomination Odds | 27-30% (early August 2026) [1][2][3] |
| 2028 Presidential Filings | Both J.D. Vance and Marco Rubio have filed statements of candidacy [4][5][6][7] |
Sources (11)
- 1Vance's Edge in 2028 Republican Presidential Nominee Race Are Better Than Odds Suggestactionnetwork.com
- 2Republican Presidential Nominee Odds for 2028federalnewsnetwork.com
- 3Polymarket Traders Make JD Vance the Clear 2028 Republican Favorite - Frontierbeatfrontierbeat.com
- 4FEC FORM 2docquery.fec.gov
- 5VANCE, J D - Candidate overview | FECfec.gov
- 6RUBIO, MARCO - Candidate overview | FECfec.gov
- 7FEC FORM 2docquery.fec.gov
- 8Rubio emerges as 2028 contender amid Iran warwashingtonexaminer.com
- 9Here's a look at Trump's VP shortlist and why each contender...ap.org
- 10Vance and Rubio take different approaches as Iran tests...pbs.org
- 11Iran conflict tests JD Vance’s early 2028 positioningwashingtonexaminer.com
9. How might Donald J. Trump's endorsement (or lack thereof) before the 2028 primaries act as a key catalyst for candidates like Vivek Ramaswamy or Donald Trump Jr.?
| Trump Endorsement Success Rate | 97% of endorsed candidates won 2026 primary races (July 2026) [1][2][3][4][5] |
|---|---|
| Endorsement Impact Level | Critical, high-impact factor in Republican primary politics (August 2026) [6] |
| 2028 Nomination Market Impact | Most significant variable to upend prediction market odds [7][8] |
Sources (15)
- 197% of Trump-endorsed candidates won primaries this election cycle - Ballotpedia Newsnews.ballotpedia.org
- 297% of Trump-endorsed candidates won primaries this election cycle - Ballotpedia Newsnews.ballotpedia.org
- 3Takeaways from Tuesday's primaries: Massie's loss leaves no...ap.org
- 4Tuesday's takeaways: Platner's big night, Clyburn carries on...ap.org
- 5Trump has issued a total of 196 midterm endorsements so far - Ballotpedia Newsnews.ballotpedia.org
- 6Almost 200 candidates have filed to run in the 2028 presidential election - Ballotpedia Newsnews.ballotpedia.org
- 7Republican Presidential Nominee 2028 Prediction Market Odds | Polyguanapolyguana.com
- 8Tracking Republican Nominee Odds as Vance Widens the Gapfederalnewsnetwork.com
- 9Trump privately backs Vance for 2028 presidential electionen.yenisafak.com
- 10Ohio GOP primary for governor shows potential headwinds for Ramaswamy as he looks to fall campaign | The Associated Pressap.org
- 117 most likely GOP successors to Trump in 2028thehill.com
- 12Presidential candidates, 2028ballotpedia.org
- 13Donald Trump Jr.: The Candidate No One Is Talking About - The American Conservativetheamericanconservative.com
- 14Speculation Grows Over Donald Trump Jr.'s Potential 2028...yahoo.com
- 15Trump 2028? The Real Trump on the Ballot Might Be Don Jr. — A 5¢ Kalshi Thesis | PredictionMarketsPickspredictionmarketspicks.com
10. What Could Change the Odds
Key Catalysts
Key Dates & Catalysts
- Expiration: November 07, 2028
- Closes: November 07, 2028
Sources (9)
- 1Vance's Edge in 2028 Republican Presidential Nominee Race Are Better Than Odds Suggestactionnetwork.com
- 2Geopolitical tensions fuel volatility in 2028 Republican nomination prediction market | Noah Intelligencenoah-news.com
- 32028 Republican primary draft - by Nate Silvernatesilver.net
- 42028 Republican Presidential Nomination: Prediction Market Odds and Frontrunners | Beeks.aibeeks.ai
- 5Vance Leads GOP 2028 Odds as Markets Price Trump Risk - DeFi Ratedefirate.com
- 6Timeline of the 2028 United States presidential electionen.wikipedia.org
- 7Overview of the presidential election process | USAGovusa.gov
- 8When Is the 2028 Presidential Election? Date, Countdown & Key Dates | Who's Running 20282028tracker.com
- 9Election cycle and aggregationfec.gov