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Republican Presidential Nominee 2028

By PolySays EditorialUpdated Editorial method

Post

This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Republican Party for U.S. president.

Current leader

43.8%

44%

Largest 24h move-0.5 pp 24h
24h volume
$77K
Liquidity
$21.7M
Scheduled close

Top candidates

12 outcomes

  • Will J.D. Vance win the 2028 Republican presidential nomination?

    0.0 pp 24h44%
  • Will Marco Rubio win the 2028 Republican presidential nomination?

    -0.5 pp 24h15%
  • Will Tucker Carlson win the 2028 Republican presidential nomination?

    0.0 pp 24h3%
  • Will Ron DeSantis win the 2028 Republican presidential nomination?

    +0.1 pp 24h3%
  • Will Ted Cruz win the 2028 Republican presidential nomination?

    +0.1 pp 24h2%
Show all outcomes
  • Will Donald Trump win the 2028 Republican presidential nomination?

    2%

    0.0 pp

  • Will Donald Trump Jr. win the 2028 Republican presidential nomination?

    2%

    0.0 pp

  • Will Tulsi Gabbard win the 2028 Republican presidential nomination?

    0%

    0.0 pp

  • Will Pete Hegseth win the 2028 Republican presidential nomination?

    0%

    0.0 pp

  • Will Tom Cotton win the 2028 Republican presidential nomination?

    0%

    0.0 pp

  • Will Marjorie Taylor Greene win the 2028 Republican presidential nomination?

    0%

    0.0 pp

  • Will Glenn Youngkin win the 2028 Republican presidential nomination?

    0%

    0.0 pp

Now Gained in 24h Lost in 24hChanges are in percentage points (pp).

Latest update

VolumeMonitoring only

Will Marco Rubio win the 2028 Republican presidential nomination? — probability rises to 14.75%

Probability moved from 14.7% to 14.75%. Reported rolling 24-hour volume changed from $28,725.9555 to $93,983.5655. The cause is not established.

Yes: 15% → 15%

+0.1 pp
Sources and full timeline

Story so far

Recently updated

Probability moved from 14.7% to 14.75%. Reported rolling 24-hour volume changed from $28,725.9555 to $93,983.5655. The cause is not established.

A sourced or deterministic market update is available.

Known catalysts

Supported by the sources below

  • No catalyst has been confirmed yet.

Unresolved questions

What the evidence doesn’t settle

  • Watch further market observations and reporting about this contract. This update has not been enrolled for editorial research.

People and institutions to watch

Nothing specific is being tracked yet.

Source trail

Public sources opened for this story

No public sources are attached yet.

Odds chart

Candidate probability over time

Living timeline

Significant updates

  1. Coverage updated

    Observed movement

    Observed probability rose from 14.7% to 14.75% (+0.05 percentage points), from 2026-10-19T19:30:41.686Z to 2026-10-19T19:47:37.074Z (UTC).

    Editorial research is deferred. This update preserves the observed market change. The cause of the move is not established.

    The measured move

    Yes: 14.7% → 14.75%

    What changed

    Probability moved from 14.7% to 14.75% (+0.05 percentage points). Observations were 16 minutes 55 seconds apart: 2026-10-19 19:30:41 UTC to 2026-10-19 19:47:37 UTC. The move also met PolySays' high-volume-shock threshold. Reported rolling 24-hour volume changed from $28,725.9555 to $93,983.5655.

    What to watch next

    Watch further market observations and reporting about this contract. This update has not been enrolled for editorial research.

    Sources

    No external sources are attached yet.

  2. Coverage updated

    Observed movement

    Observed probability fell from 44.85% to 43.95% (-0.9 percentage points), from 2026-10-19T08:32:19.962Z to 2026-10-19T08:47:20.274Z (UTC).

  3. Coverage updated

    Observed movement

    Observed probability rose from 13.65% to 13.75% (+0.1 percentage points), from 2026-10-19T01:01:36.587Z to 2026-10-19T01:17:54.457Z (UTC).

  4. Coverage updated

    Observed movement

    Observed probability remained at 13.15% (0 percentage points), from 2026-10-18T23:01:39.038Z to 2026-10-18T23:17:19.620Z (UTC).

  5. Coverage updated

    Observed movement

    Observed probability rose from 2.45% to 3.4% (+0.95 percentage points), from 2026-10-18T21:45:55.501Z to 2026-10-18T22:01:04.360Z (UTC).

  6. Coverage updated

    Observed movement

    Observed probability remained at 3.1% (0 percentage points), from 2026-10-18T20:45:05.129Z to 2026-10-18T21:02:11.064Z (UTC).

  7. Coverage updated

    Observed movement

    Observed probability remained at 48.35% (0 percentage points), from 2026-10-16T00:30:29.870Z to 2026-10-16T00:45:28.055Z (UTC).

Market rules, made readable

Official description

How this market is decided

Read the rules before reading the headline. Resolution wording decides the outcome, not the news.

See what is changing

Resolves Yes

This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Republican Party for U.S. president.

Resolves No

Otherwise, this market will resolve to “No”.

The resolution source for this market will be a consensus of official Republican Party sources. Any replacement of the Republican nominee before election day will not change the resolution of the market.

Living timeline · 12 significant updates

Will Marco Rubio win the 2028 Republican presidential nomination? — probability rises to 14.75%

Keep exploring

Volume

Will Marco Rubio win the 2028 Republican presidential nomination? — probability rises to 14.75%

Republican Presidential Nominee 2028

Volume

Will J.D. Vance win the 2028 Republican presidential nomination? — probability falls to 43.95%

Republican Presidential Nominee 2028

Volume

Will Marco Rubio win the 2028 Republican presidential nomination? — probability rises to 13.75%

Republican Presidential Nominee 2028

Volume

Will Marco Rubio win the 2028 Republican presidential nomination? — probability holds at 13.15%

Republican Presidential Nominee 2028

Volume

Will Ron DeSantis win the 2028 Republican presidential nomination? — probability rises to 3.4%

Republican Presidential Nominee 2028

Volume

Will Tucker Carlson win the 2028 Republican presidential nomination? — probability holds at 3.1%

Republican Presidential Nominee 2028

Volume

Will J.D. Vance win the 2028 Republican presidential nomination? — probability holds at 48.35%

Republican Presidential Nominee 2028

Plunge

Will J.D. Vance win the 2028 Republican presidential nomination? — probability falls to 48.6%

Republican Presidential Nominee 2028

Surge

Will Donald Trump win the 2028 Republican presidential nomination? — probability holds at 2%

Republican Presidential Nominee 2028

Surge

Will J.D. Vance win the 2028 Republican presidential nomination? — probability rises to 48.85%

Republican Presidential Nominee 2028

Surge

Will Tulsi Gabbard win the 2028 Republican presidential nomination? — probability holds at 0.45%

Republican Presidential Nominee 2028

Surge

Will Kim Kardashian win the 2028 Republican presidential nomination? — probability holds at 0.15%

Republican Presidential Nominee 2028

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