The 2028 Republican presidential nominee market trades across more than $700M in cumulative volume on Kalshi and Polymarket, with a contender field topping 40 names but a live race centered on J.D. Vance, Marco Rubio, Tucker Carlson, Donald J. Trump Jr., and Ron DeSantis. The live board above ranks the current cross-platform prices on every name; the market resolves to whoever wins the Republican nomination at the 2028 Republican National Convention.
The 2028 Republican presidential nominee market is a multi-year position trade, not a single event, and the board reflects that structure. A field of more than 40 named contenders splits the probability, but the conviction money concentrates heavily at the top: J.D. Vance carries the chalk by a wide margin, with Marco Rubio established as the clear second name and Tucker Carlson, Donald J. Trump Jr., and Ron DeSantis forming the next layer of credible contenders. The live board above ranks every name by current cross-platform price; this page covers who the field is, what structurally moves it, and exactly how it resolves at the 2028 Republican National Convention.
J.D. Vance sits at the front of the field as the most heavily backed name, reflecting the standard market premium an incumbent vice president carries into an open nomination cycle. His position on the board is the single largest concentration of probability in the market, and the gap between Vance and the rest of the field is the defining structural feature of the current price. The chief risks to that standing are the same ones that move any front-runner: the prevailing administration's standing, primary calendar developments, and whether a credible challenger consolidates the non-front-runner vote.
Marco Rubio is the clear second name on the board and the most active cross-platform contender, drawing real two-platform support on both Kalshi and Polymarket. Rubio's price reflects an establishment-lane profile and national name recognition, and the spread between his Kalshi and Polymarket lines is one of the more watched divergences in the market. Below the top two, the field steps down sharply.
Tucker Carlson and Donald J. Trump Jr. anchor the next tier as the names most associated with the movement's media and family wings rather than a conventional officeholder path. Both trade in the low single digits on the board, and their prices tend to move on attention and positioning rather than formal campaign milestones, which makes them more volatile week to week than the established politicians above them. Ron DeSantis rounds out the credible group, a former primary contender whose price reflects residual recognition from a prior national run against the discount markets apply to a candidate who has not yet signaled a 2028 bid.
Beyond the top five, the board flattens into a long tail of one- and two-percent names, from sitting senators and governors to several outside-the-arena figures. The live board above is the only honest read on who in that tail is moving and who is dormant; the names listed there reflect every contract the platforms have opened, not an editorial judgment about viability.
The 2028 Republican presidential nominee market resolves to the candidate who secures the Republican nomination for president, formally determined at the 2028 Republican National Convention in the summer of 2028. The nomination is decided by delegates accumulated through the state-by-state primary and caucus calendar and confirmed by the convention vote; the winning contender's contract pays out while every other contract resolves to zero. The market's listed settlement date carries to the November 2028 general election as a buffer, but the outcome is fixed the moment a candidate clinches the nomination.
The 2028 Republican nominee race runs alongside the 2028 Democratic nominee market and feeds directly into the 2028 presidential party winner market, where the two nominee boards combine into the general-election question. For the candidacy layer beneath the nomination, the Republican candidacy market tracks who is in or out of the race, and the broader politics market hub covers the full slate of US and international election odds. Page maintained by Genius Staff, refreshed on a review cycle as the field and the prices move.
Resolves to the candidate who wins the 2028 Republican Party nomination for President of the United States, formally determined at the 2028 Republican National Convention in the summer of 2028. The nominee is decided by delegates accumulated through the state primary and caucus calendar and confirmed by the convention vote. The winning contender's contract pays $1 per share; all other contender contracts resolve to $0. The listed market settlement date carries to the November 2028 general election as a buffer, but the outcome is fixed when a candidate clinches the nomination. If the eventual nominee is a contender not individually listed, the market resolves per each platform's "other" and tie rules.
The live board above ranks current cross-platform prices on every contender across Kalshi and Polymarket. The race is led by J.D. Vance, with Marco Rubio the clear second name and Tucker Carlson, Donald J. Trump Jr., and Ron DeSantis forming the next tier across a field of more than 40 listed contenders.
The market resolves when a candidate secures the nomination, formally confirmed at the 2028 Republican National Convention in the summer of 2028. The contract carries a settlement buffer to the November 2028 general election, but the outcome is fixed when the nominee clinches.
Both Kalshi and Polymarket list the 2028 Republican presidential nominee market, with cross-platform pairs on the leading contenders. The board above compares both platforms side by side so you can see where the prices diverge.
J.D. Vance sits at the front of the field by a wide margin as the most heavily backed name, with Marco Rubio the clear second contender drawing the most active cross-platform support. Check the live board above for the current ranking.
Watch whether the field consolidates behind or fractures away from front-runner J.D. Vance, then track the early-state primary and caucus results, the Kalshi-Polymarket spread on Marco Rubio, and which listed contenders formally declare or decline a 2028 run.