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Who will Trump endorse first in the 2028 US presidential election? — Polymarket Odds

Updated September 24, 2026 · Category: Politics & Elections · Market end date: November 7, 2028

As of September 24, 2026 at 17:11 UTC, the leading outcome is J.D. Vance at 48.5%, followed by Marco Rubio at 14%, Eric Trump at 10.2%. The market has $20.2K in total volume and $124 in the last 24 hours.

Current odds

OutcomeProbability24h changeVolume
J.D. Vance48.5%
-4.0 pts$8.4K
Marco Rubio14%
-2.0 pts$2.0K
Eric Trump10.2%
$453
Donald Trump Jr.5.2%
$537
Elon Musk3.2%
$585
Donald Trump2.3%
-0.4 pts$1.5K
Vivek Ramaswamy0.7%
$440
Ron DeSantis0.6%
$500
Sarah Huckabee Sanders0.6%
$443
Tulsi Gabbard0.6%
$440
Ted Cruz0.6%
$433
Byron Donalds0.6%
$433
Greg Abbott0.6%
$432
Thomas Massie0.6%
$432
Glenn Youngkin0.6%
$428

6 lower-priced outcomes are not shown; the full list is in the JSON data.

Total volume $20.2K · 24h volume $124 · Liquidity $162.4K. Prices are Polymarket YES-share prices read as probabilities; they are not executable quotes.

30-day price history

0%25%50%75%100%Aug 25Sep 24

J.D. Vance Marco Rubio Eric Trump · 30-day price history (12-hour points)

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How this market resolves

This market will resolve according to the first individual that Donald Trump endorses for President of the United States in the 2028 United States Presidential Election.

An endorsement is defined as a statement by Donald Trump that i) is made publicly (e.g., through a press release, an on-the-record interview, a speech, a campaign event, a post from a verified account on social media); ii) explicitly and unambiguously expresses unique support for an individual as a candidate for President of the United States in the 2028 United States Presidential election; and iii) is characterized by a consensus of credible reporting as an official endorsement by Donald Trump of the individual for President in the 2028 United States presidential election.

An endorsement of an individual for the Republican Party’s nomination to the 2028 United States Presidential election will qualify. Endorsements of a candidate for the Democratic Party's nomination without also endorsing that candidate for President in the general election will not qualify.

The following will not be considered endorsements: positive or favorable comments about a candidate without a clear public statement of direct support; conditional statements giving support only if certain conditions are met; statements equally expressing support for multiple candidates (e.g., “I support Marco and J.D.”); statements expressing opposition to a candidate without endorsing any candidate; private or non-public statements; and statements that are clearly sarcastic, made in jest, or immediately clarified as not reflecting genuine support.

An endorsement of a ticket comprising a presidential candidate and a vice-presidential candidate constitutes a qualifying endorsement only of the individual endorsed for President. If the endorsement is of a ticket with undefined presidential and vice-presidential roles, or the roles on an endorsed ticket cannot be determined by the statement itself or a consensus of credible reporting, no qualifying endorsement will be deemed to have occurred.

If Donald Trump issues multiple concurrent statements meeting this standard, directed at different individuals, this will not constitute a qualifying endorsement and this market will remain open and resolve based on the first standalone qualifying endorsement issued. Endorsements will be considered to be issued concurrently only if they are issued in the same written statement (e.g., a public social media post), or in a singular public speaking event (e.g., a press conference, a speech).

Endorsements via social media count only from verified accounts controlled by Donald Trump. Likes, reposts, or shares alone do not constitute a qualifying endorsement.

If Donald Trump officially files his candidacy for the 2028 United States Presidential election before issuing a qualifying endorsement, this market will resolve to “Donald Trump.” Statements alone will not be sufficient to resolve this market to “Donald Trump.”

Once a qualifying …

Summary of the market's published rules. The rules on Polymarket control settlement; check them there before relying on any outcome: open this market on Polymarket.

Related markets

More odds by topic: Trump odds · 2028 Presidential Election odds · Politics odds

Frequently asked questions

What are the current Polymarket odds for Who will Trump endorse first in the 2028 US presidential election?

As of September 24, 2026 at 17:11 UTC, the leading outcome is J.D. Vance at 48.5%, followed by Marco Rubio at 14%, Eric Trump at 10.2%. The market has $20.2K in total volume and $124 in the last 24 hours.

When does the Who will Trump endorse first in the 2028 US presidential election market end?

The event's listed end date is November 7, 2028. Each outcome settles under the market's written rules, summarised on this page, which can differ from the end-date field.

How are these odds calculated?

They are the displayed prices of each outcome's YES share on Polymarket. A price of 60¢ implies roughly a 60% chance. This page refreshes the numbers twice a day, so they are not live quotes.

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