Market comparison

Who will Donald Trump endorse in the 2028 presidential election?

2 venues · 56 outcome rows · 3 comparable lines · 0 verified parity · active

Polymarket

Open venue ↗

107 outcomes · $85K reported volume

Observed 1m ago

Recorded venue end date: Oct 26, 2026

Kalshi

Open venue ↗

6 outcomes · $49K reported volume

Observed 9s ago

Recorded venue end date: Mar 1, 2028

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These venues also report end dates more than 48 hours apart; event identity does not mean the contracts close or settle together. These are stored prices; record update times do not certify live quotes. Differences exclude fees and available size.

A shared identity alone does not make a price difference executable.

Available outcome prices by venue for Who will Donald Trump endorse in the 2028 presidential election?
Outcome	Polymarket	Kalshi	Difference
J.D. Vance Same label, rules unverified Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.	51.0% Bid 50.0% · Ask 52.0% J.D. Vance Open Polymarket ↗	47.0% Bid 47.0% · Ask 49.0% J.D. Vance Open Kalshi ↗	4.0 pp
Marco Rubio Same label, rules unverified Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.	30.0% Bid 29.0% · Ask 31.0% Marco Rubio Open Polymarket ↗	25.0% Bid 25.0% · Ask 28.0% Marco Rubio Open Kalshi ↗	5.0 pp
Ron DeSantis Same label, rules unverified Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.	0.5% Bid 0.2% · Ask 0.9% Ron DeSantis Open Polymarket ↗	1.0% Bid 1.0% · Ask 2.0% Ron DeSantis Open Kalshi ↗	0.5 pp
Augusto Cury Not aligned No persisted outcome identity connects these venue contracts.	0.8% Bid 0.2% · Ask 1.3% Augusto Cury Open Polymarket ↗	—	—
Brian Kemp Not aligned No persisted outcome identity connects these venue contracts.	0.5% Bid 0.2% · Ask 0.9% Brian Kemp Open Polymarket ↗	—	—
Byron Donalds Not aligned No persisted outcome identity connects these venue contracts.	0.5% Bid 0.2% · Ask 0.9% Byron Donalds Open Polymarket ↗	—	—
Donald J. Trump Jr. Not aligned No persisted outcome identity connects these venue contracts.	—	6.0% Bid 2.0% · Ask 6.0% Donald J. Trump Jr. Open Kalshi ↗	—
Donald J. Trump Jr. Not aligned No persisted outcome identity connects these venue contracts.	5.1% Bid 2.0% · Ask 8.2% Donald Trump Jr. Open Polymarket ↗	—	—
Donald Trump Not aligned No persisted outcome identity connects these venue contracts.	4.0% Bid 1.3% · Ask 6.6% Donald Trump Open Polymarket ↗	—	—
Elon Musk Not aligned No persisted outcome identity connects these venue contracts.	3.2% Bid 0.3% · Ask 6.1% Elon Musk Open Polymarket ↗	—	—
Eric Trump Not aligned No persisted outcome identity connects these venue contracts.	4.7% Bid 0.5% · Ask 8.9% Eric Trump Open Polymarket ↗	—	—
Flávio Bolsonaro Not aligned No persisted outcome identity connects these venue contracts.	18.0% Bid 17.0% · Ask 19.0% Flávio Bolsonaro Open Polymarket ↗	—	—
Glenn Youngkin Not aligned No persisted outcome identity connects these venue contracts.	0.6% Bid 0.3% · Ask 0.9% Glenn Youngkin Open Polymarket ↗	—	—
Greg Abbott Not aligned No persisted outcome identity connects these venue contracts.	0.5% Bid 0.2% · Ask 0.9% Greg Abbott Open Polymarket ↗	—	—
Himself Not aligned No persisted outcome identity connects these venue contracts.	—	6.0% Bid 3.0% · Ask 6.0% Himself Open Kalshi ↗	—
Ivanka Trump Not aligned No persisted outcome identity connects these venue contracts.	0.3% Bid 0.1% · Ask 0.5% Ivanka Trump Open Polymarket ↗	—	—
Lula da Silva Not aligned No persisted outcome identity connects these venue contracts.	0.8% Bid 0.3% · Ask 1.2% Lula da Silva Open Polymarket ↗	—	—
Marjorie Taylor Greene Not aligned No persisted outcome identity connects these venue contracts.	0.2% Bid 0.1% · Ask 0.3% Marjorie Taylor Greene Open Polymarket ↗	—	—
No one Not aligned No persisted outcome identity connects these venue contracts.	—	9.0% Bid 9.0% · Ask 11.0% No one Open Kalshi ↗	—
Person AA Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AA · closed Open Polymarket ↗	—	—
Person AB Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AB · closed Open Polymarket ↗	—	—
Person AC Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AC · closed Open Polymarket ↗	—	—
Person AD Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AD · closed Open Polymarket ↗	—	—
Person AE Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AE · closed Open Polymarket ↗	—	—
Person AF Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AF · closed Open Polymarket ↗	—	—
Person AG Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AG · closed Open Polymarket ↗	—	—
Person AH Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AH · closed Open Polymarket ↗	—	—
Person AI Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AI · closed Open Polymarket ↗	—	—
Person AJ Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AJ · closed Open Polymarket ↗	—	—
Person AK Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AK · closed Open Polymarket ↗	—	—
Person AL Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AL · closed Open Polymarket ↗	—	—
Person AM Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AM · closed Open Polymarket ↗	—	—
Person AN Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AN · closed Open Polymarket ↗	—	—
Person AO Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AO · closed Open Polymarket ↗	—	—
Person AP Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AP · closed Open Polymarket ↗	—	—
Person AQ Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AQ · closed Open Polymarket ↗	—	—
Person AR Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AR · closed Open Polymarket ↗	—	—
Person AS Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AS · closed Open Polymarket ↗	—	—
Person AT Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AT · closed Open Polymarket ↗	—	—
Person AU Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AU · closed Open Polymarket ↗	—	—
Person AV Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AV · closed Open Polymarket ↗	—	—
Person AW Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AW · closed Open Polymarket ↗	—	—
Person AX Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AX · closed Open Polymarket ↗	—	—
Person AY Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AY · closed Open Polymarket ↗	—	—
Person AZ Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Person AZ · closed Open Polymarket ↗	—	—
Rand Paul Not aligned No persisted outcome identity connects these venue contracts.	0.4% Bid 0.2% · Ask 0.6% Rand Paul Open Polymarket ↗	—	—
Renan Santos Not aligned No persisted outcome identity connects these venue contracts.	2.7% Bid 0.7% · Ask 4.7% Renan Santos Open Polymarket ↗	—	—
Robert F. Kennedy Jr. Not aligned No persisted outcome identity connects these venue contracts.	0.3% Bid 0.1% · Ask 0.4% Robert F. Kennedy Jr. Open Polymarket ↗	—	—
Romeu Zema Not aligned No persisted outcome identity connects these venue contracts.	1.2% Bid 0.5% · Ask 1.9% Romeu Zema Open Polymarket ↗	—	—
Ronaldo Caiado Not aligned No persisted outcome identity connects these venue contracts.	1.7% Bid 0.5% · Ask 2.8% Ronaldo Caiado Open Polymarket ↗	—	—
Sarah Huckabee Sanders Not aligned No persisted outcome identity connects these venue contracts.	0.5% Bid 0.2% · Ask 0.9% Sarah Huckabee Sanders Open Polymarket ↗	—	—
Ted Cruz Not aligned No persisted outcome identity connects these venue contracts.	0.6% Bid 0.2% · Ask 1.0% Ted Cruz Open Polymarket ↗	—	—
Thomas Massie Not aligned No persisted outcome identity connects these venue contracts.	0.4% Bid 0.2% · Ask 0.7% Thomas Massie Open Polymarket ↗	—	—
Tucker Carlson Not aligned No persisted outcome identity connects these venue contracts.	0.6% Bid 0.2% · Ask 1.0% Tucker Carlson Open Polymarket ↗	—	—
Tulsi Gabbard Not aligned No persisted outcome identity connects these venue contracts.	0.5% Bid 0.2% · Ask 0.9% Tulsi Gabbard Open Polymarket ↗	—	—
Vivek Ramaswamy Not aligned No persisted outcome identity connects these venue contracts.	0.6% Bid 0.2% · Ask 1.0% Vivek Ramaswamy Open Polymarket ↗	—	—

J.D. Vance

Same label, rules unverified

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.

Polymarket

51.0%

Bid 50.0% · Ask 52.0%

J.D. Vance

Who will Donald Trump endorse in the 2028 presidential election?

Polymarket

Kalshi

J.D. Vance

Polymarket

Kalshi

Marco Rubio

Polymarket

Kalshi

Ron DeSantis

Polymarket

Kalshi

Augusto Cury

Polymarket

Kalshi

Brian Kemp

Polymarket

Kalshi

Byron Donalds

Polymarket

Kalshi

Donald J. Trump Jr.

Polymarket

Kalshi

Donald J. Trump Jr.

Polymarket

Kalshi

Donald Trump

Polymarket

Kalshi

Elon Musk

Polymarket

Kalshi

Eric Trump

Polymarket

Kalshi

Flávio Bolsonaro

Polymarket

Kalshi

Glenn Youngkin

Polymarket

Kalshi

Greg Abbott

Polymarket

Kalshi

Himself

Polymarket

Kalshi

Ivanka Trump

Polymarket

Kalshi

Lula da Silva

Polymarket

Kalshi

Marjorie Taylor Greene

Polymarket

Kalshi

No one

Polymarket

Kalshi

Person AA

Polymarket

Kalshi

Person AB

Polymarket

Kalshi

Person AC

Polymarket

Kalshi

Person AD

Polymarket

Kalshi

Person AE

Polymarket

Kalshi

Person AF

Polymarket

Kalshi

Person AG

Polymarket