The 2028 Presidential Election will be another massive political inflection point for the country, and Republican Presidential Nominee Odds are shifting as the pace picks up on the road to the next election. Vice President J.D. Vance is the current favorite in the Republican nominee odds, maintaining a lead over the field of candidates.
With several prediction market platforms available in the US, eligible users can legally trade on election results, including the next Republican presidential nomination. In essence, these prediction market platforms allow users to trade on the 2028 Republican Presidential Nominee in addition to other political, sports, and financial events.
Republican Presidential Nominee odds last updated August 14, 2026.
As of August 2026, Vice President J.D. Vance has the best Republican Presidential Nominee odds, holding a slight lead over the rest of the candidates. The Vice President’s current probability on Kalshi is around 39% to win the Republican nomination for the 2028 election.
Marco Rubio, the US Secretary of State, currently has the second-best odds to be the 2028 Republican Presidential Nominee. The chances for Rubio to win the Republican nomination have grown to 30% following the United States’ geopolitical operations on several fronts. Governor Ron DeSantis has the third-best Republican Presidential Nomination odds at around 5% implied market probability on Kalshi.
Other notable odds to track for the 2028 Republican Presidential Nomination include Florida Governor Ron DeSantis at 4%, current President Donald J. Trump at 3%, and Glenn Youngkin, Governor of Virginia, at 2%.
Tracking election odds has become very popular in recent times, and prediction markets for the 2028 Republican Presidential Nominee were opened on November 6, 2024, the day after the 2024 US Presidential Election, in which (R) Donald Trump defeated (D) Kamala Harris to win his second presidential term.
As long as the Republican Presidential Nominee markets are open, eligible users have the ability to trade event contracts for Yes and No outcomes of different candidates to win the nomination. Markets for the presidential nomination will close as soon as the Republican Party officially nominates a candidate for the Presidency (candidate must accept the nomination). Otherwise, the market will be closed by November 7, 2028, the day of the 2028 Presidential Election.
Follow the timeline to see the major events and corresponding market movements for the 2028 Republican Presidential Nominee odds. All percentage chances and odds to win the nomination are from Kalshi.
*Republican Nominee odds provided by Kalshi
Eligible users can access Republican Nominee Odds on several legal prediction market apps and platforms. Popular exchanges for trading on US Politics, including the Republican Presidential Nomination, include Kalshi, Polymarket, Robinhood, and more. Users can expect to see more and more prediction market platforms launching in the near future as several prominent operators are preparing to enter the space.
Prediction market apps are available to download for free on iOS and Android devices, so they’re very accessible for users on a variety of operating platforms. New users who register with any of the linked promo code offers on this page will start with a bonus when they sign up to trade on the Republican Presidential Nominee odds.
Polymarket is available for US-based users in nearly all 50 states. The politics trading platform is one of the best places to stake presidential election odds as well as politics current events odds. Polymarket is branded as the world’s largest prediction market and offers event contract trading for several popular categories, including Politics, Sports, Finance, Economics, and more. There is also a dedicated market available for users to trade on the 2028 Republican Presidential Nominee odds. New users can claim the Polymarket promo code to skip the waitlist and unlock an offer to trade $10 and get a $20 bonus.
Kalshi is one of the best online prediction market platforms in the country, and it’s already legal and available in 45 states. Users on Kalshi can access a plethora of politics trading markets, including the 2028 Republican Presidential Nominee odds and other election markets. New traders who create an account on Kalshi using the linked Kalshi promo code can secure a $25 Bonus when they complete $25 in trades.
OG.com is a new prediction markets platform that was launched in February 2026. The OG platform has markets for the latest Republican Presidential nominee odds, allowing users to buy and sell positions regarding who they think will win the Republican nomination for 2028. OG.com has other politics prediction markets, as well as markets for sports, financials, and many more. New users can register with the OG.com sign up bonus to get a welcome offer to trade $10, and get a $10 bonus right out of the gate.
Crypto.com is a top-tier predictions platform, and users can trade on a variety of political outcomes, including the latest Republican Presidential nominee odds for 2028. Crypto.com is available nationwide, and eligible users can trade event contracts for several categories, like politics, economics, sports, and more. New users can sign up with the referral code to get $50 in CRO when they get started today.
Robinhood uses brokerage integrations to offer event trading options, like Republican and Democratic Presidential Nominee odds, within the trading app. The event contracts listed on Robinhood are provided by Kalshi, so trading on political outcomes with Robinhood is still legal and federally regulated by the Commodity Futures Exchange Commission. The Kalshi brokerage integration on Robinhood allows users to manage their stock positions alongside event contract trading on political outcomes like the Republican Presidential Nominee odds, financial prediction markets, and many more options all within one app.
Now available following a December 2025 launch, Fanatics Markets is now offering event contract trading for users in many states throughout the country. Initially launched in ten states, the Fanatics Markets platform quickly expanded to be available in 24 total states. Fanatics Markets can be downloaded as a free, standalone app on both iOS and Android devices. Pricing for event contracts on Fanatics Markets is provided by Crypto.com, so the platform is CFTC-regulated, allowing eligible users to trade on politics, culture, sports, and more.
FanDuel Predicts went live in December 2025 thanks to a recently formed partnership between FanDuel and CME Group. Available in all 50 states (market restrictions in some states), FanDuel Predicts brings legal event contract trading to users located in several states where sportsbooks are not currently legal and available. In addition to sports prediction markets, the FanDuel Predicts platform offers event contract trading for economics prediction markets like the prices of Gold, Oil, and Gas. FanDuel Predicts users also have the option to trade on outcomes for key economic indicators like the S&P 500, Nasdaq, GDP, and CDI, in addition to Crypto prediction markets.
*Won the Presidential Election
Recapping the last ten Republican Presidential Nominees, there have been six total candidates, as three Republicans (George H.W. Bush, George W. Bush, and Donald Trump) won the presidential nomination on two separate occasions. Out of the last ten Republican nominations, the party has won the presidency in five of those elections.
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