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2028 Republican Nominee Odds for PresidentJ.D. Vance leads Marco Rubio, 31% to 21%

Kalshi has J.D. Vance at 31% and Polymarket at 31%. Over the past week on Kalshi, Ron DeSantis gained the most, 15 points to 20%, and J.D. Vance lost 7 points, to 31%.

Favorite on average
31%J.D. Vance

About 1 in 3 Down 7 pts this week (Kalshi)

Average of Kalshi (31%) and Polymarket (31%).

Prices to buy now. $100 on Kalshi at the ask pays $322 if correct, before fees.

Runner-up on average
21%Marco Rubio

About 1 in 5 Up 4 pts this week (Kalshi)

Average of Kalshi (23%) and Polymarket (19%).

Prices to buy now. $100 on Polymarket at the ask pays $520 if correct, before fees.

Kalshi and Polymarket

2028 Republican presidential nominee

24h volume
$902Kcombined

Kalshi: $781K (87%) · Polymarket: $121K (13%)

Trading closes
Nov 7, 2028

Kalshi: by Nov 7, 2028 · Polymarket: Nov 7, 2028

Prices to buy each outcome, or the last trade where no one is selling. Some quotes are stale: they weren't observed recently and may have moved. Tap a price to open Kalshi and Polymarket.

2028 Republican presidential nominee: Kalshi and Polymarket odds, observed between Nov 4, 6:38 AM and 11:42 AM ET
OutcomeAverageKalshiPolymarketSources
J.D. Vance31%Kalshi31¢Polymarket31.3¢
Marco Rubio21%Kalshi23¢Polymarket19.2¢
Ron DeSantis17%Kalshi20¢Polymarket15.5¢
Tucker Carlson3.2%Kalshi3.4¢Polymarket3.1¢
Ted Cruz2.5%Kalshi2.5¢Polymarket2.5¢last trade
Brian Kemp2.2%Kalshi3.2¢Polymarket1.4¢last trade
Thomas Massie2.1%Kalshi2.4¢Polymarket1.9¢last trade
Donald J. Trump2.1%Kalshi2.5¢Polymarket1.9¢
Joe Kent1.9%Kalshi3.5¢Polymarket0.70¢
Donald J. Trump Jr.1.7%Kalshi1.8¢Polymarket1.7¢last trade

Kalshi: OpenPolymarket: Open Average is the mean of each venue's price for the outcome, where it lists one (a quote more than an hour old is left out; with none newer, the latest one stands alone): the midpoint of Kalshi's bid and ask, or its last trade; Polymarket's displayed price, or the midpoint of its bid and ask. Source: Kalshi / Polymarket via DeFi Rate, observed between Nov 4, 6:38 AM and 11:42 AM ET.

The leading six, venue by venueobserved between Nov 4, 11:36 AM and 11:42 AM ET
0%10%20%30%40%KalshiPolymarketOur figureJ.D. Vance31%Marco Rubio21%Ron DeSantis17%Carlson3.2%Ted Cruz2.5%Brian Kemp2.1%

The widest gap is on Ron DeSantis: Kalshi 20% and Polymarket 15%. Our figure is their average.

Price history · Kalshi daily closeSep 3 – Nov 3

Over the past week on Kalshi, Ron DeSantis gained the most, 15 points to 20%, and J.D. Vance lost 7 points, to 31%.

01020304050OctNov35%23%5%3%2%
J.D. VanceMarco RubioRon DeSantisTucker CarlsonTed Cruz

Source: Kalshi daily close via DeFi Rate, Sep 3 to Nov 3 (UTC days). A day without a close is left out.

Market moves

Biggest moves, last 7 days

Ron DeSantis2028 Republican presidential nominee · Kalshi daily close
5% → 20%
+15 pts
J.D. Vance2028 Republican presidential nominee · Kalshi daily close
38% → 31%
−7 pts
Marco Rubio2028 Republican presidential nominee · Kalshi daily close
19% → 23%
+4 pts

Change in percentage points over 7 days, from daily closing prices to the latest observation (Nov 4, 11:42 AM ET).

Where to trade the 2028 Republican presidential nomination

Compare election prediction apps for nomination-market coverage, trading costs and account access before choosing a venue. Check that the product available to you lists the specific 2028 Republican presidential nomination contract, then inspect its available orders and settlement rules. A nomination contract concerns who becomes the party’s nominee, not who wins the presidency.

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Source: DraftKings Predictions / Gemini / Kalshi / Novig / Polymarket / Polymarket US / ProphetX / Rothera / Underdog Exchange via DeFi Rate: volume by category as of Nov 4, 10:45 AM ET.