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Events
GroupPOLYMARKET

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

Who will Trump endorse first in the 2028 US presidential election?
Vol

PM $21.8K

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Events

1

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Markets

21

Current odds

Snapshot from

As of Oct 21, 2026, 12:00 AM UTC, the highest-priced outcome on Polymarket is J.D. Vance at 51.5%.

Polymarket

  1. J.D. Vance51.5%
  2. Marco Rubio29.5%
  3. Donald Trump Jr.5.1%
  4. Eric Trump4.7%
  5. Donald Trump3.8%

Yes prices. They are not order quotes; check each platform's rules, fees and live prices before trading.

AI Analysis

Trader mode: Market mechanics, assumptions and risks

PM $21.8K

Reported volume · provider units

21

Saved contracts

0

Same-question pairs

Source snapshot: Oct 21, 2026, 12:00 AM UTC

About This Event

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 endorsement has occurred, subsequent retractions, rescissions, or endorsements of other individuals will not affect the determination of the first individual endorsed. If Donald Trump does not issue any qualifying endorsements, or file his own candidacy, by November 6, 2028, 11:59 PM ET, this market will resolve to “Other”. The resolution sources for this market will be official statements from Donald Trump and a consensus of credible reporting.

AI-generated analysis based on market data. Not financial advice.

AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.

Prices are catalog snapshots and may have changed. Check each market's rules and observation time.

PolymarketKalshiPolitics
Presidential Election Winner 2028

Presidential Election Winner 2028

PM $717.87M · K 75.39M contracts

Will JD Vance win the 2028 US Presidential Election?

Kalshi: Who will win the next presidential election? (J.D. Vance)

Needs review

PM Yes 20.1%Review neededK Yes 21.5%

Will Alexandria Ocasio-Cortez win the 2028 US Presidential Election?

Kalshi: Who will win the next presidential election? (Alexandria Ocasio-Cortez)

Needs review

PM Yes 13.3%Review neededK Yes 9.8%

Will Gavin Newsom win the 2028 US Presidential Election?

Kalshi: Who will win the next presidential election? (Gavin Newsom)

Needs review

PM Yes 9%Review neededK Yes 9.9%

Related or unreviewed contracts may settle differently. Their gap is not an equivalent-contract comparison.

Saved prices; check contract rules.

22 saved comparisonsNext deadline Nov 7, 2028 UTC
KalshiPolitics
Who will Donald Trump endorse in the 2028 presidential election?

Who will Donald Trump endorse in the 2028 presidential election?

K 47.0K contracts
Will Donald Trump endorse J.D. Vance in the 2028 presidential election before Mar 1, 2028?Yes 49.5%
Will Donald Trump endorse Marco Rubio in the 2028 presidential election before Mar 1, 2028?Yes 26%
Will Donald Trump endorse no one in the 2028 presidential election before Mar 1, 2028?Yes 10.5%
+3 moreNext deadline Mar 1, 2028 UTC
KalshiPolitics
Who will be the first Democrat listed to announce a presidential run? (More strikes)

Who will be the first Democrat listed to announce a presidential run? (More strikes)

K 47.5K contracts
Will Rahm Emanuel be first this list to declare for 2028 United States presidential election before Nov 1, 2028?Yes 31.5%
Will Ro Khanna be first this list to declare for 2028 United States presidential election before Nov 1, 2028?Yes 14%
Will Pete Buttigieg be first this list to declare for 2028 United States presidential election before Nov 1, 2028?Yes 12.5%
+30 moreNext deadline Nov 8, 2028 UTC
KalshiPolitics
Who will be the first Democrat listed to announce a presidential run?

Who will be the first Democrat listed to announce a presidential run?

K 93.1K contracts
Will Pete Buttigieg be first this list to declare for 2028 United States presidential election before Nov 7, 2028?Yes 33%
Will Andy Beshear be first this list to declare for 2028 United States presidential election before Nov 7, 2028?Yes 22%
Will Gavin Newsom be first this list to declare for 2028 United States presidential election before Nov 7, 2028?Yes 13.1%
+7 moreNext deadline Nov 14, 2028 UTC
KalshiPolitics
Who will DSA endorse in the 2028 presidential election?

Who will DSA endorse in the 2028 presidential election?

K 405.76 contracts
Will the Democratic Socialists of America (DSA) national organization endorse no one in the 2028 presidential election, including the Democratic primaries before Mar 1, 2028?Yes 45%
Will the Democratic Socialists of America (DSA) national organization endorse Alexandria Ocasio-Cortez in the 2028 presidential election, including the Democratic primaries before Mar 1, 2028?Yes 28.5%
Will the Democratic Socialists of America (DSA) national organization endorse Shawn Fain in the 2028 presidential election, including the Democratic primaries before Mar 1, 2028?Yes 6%
+3 moreNext deadline Mar 1, 2028 UTC
KalshiPolitics
2028 U.S. Vice-Presidential Election winner

2028 U.S. Vice-Presidential Election winner

K 27.0K contracts
Who will win the 2028 United States vice presidential election? (Alexandria Ocasio-Cortez)Yes 11%
Who will win the 2028 United States vice presidential election? (Marco Rubio)Yes 10%
Who will win the 2028 United States vice presidential election? (Jon Ossoff)Yes 6%
+24 moreNext deadline Jan 6, 2030 UTC

Market Insights

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