Vance maintains a consistent lead in national and early-state polling averages for the 2028 Republican presidential nomination, typically holding 15- to 25-point margins over Rubio among likely primary voters. Rubio has publicly stated he has no current plans to seek the nomination and would support Vance if the vice president runs, while the contest remains in its pre-midterm phase with no formal candidate announcements. These factors, combined with Trump's ongoing influence over party dynamics and the short window until October 31, underpin the 97% trader consensus against an immediate flip. A sudden shift could still occur if Rubio secures a high-profile diplomatic breakthrough or Vance faces an unforeseen setback before the deadline, though neither appears imminent based on recent developments.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAn hourly odds value is the value in the "Odds of Happening" column that PredictionMarketOdds.com publishes for an option for a one-hour "Time Window (ET)", as shown on the listing page and in the "Odds History" graph. Hourly odds values are compared at the precision published by PredictionMarketOdds.com (one tenth of a percent). An hour in which the two values are equal does not count as Marco Rubio being higher and ends any run of consecutive hourly odds values.
Hours for which PredictionMarketOdds.com publishes no hourly odds value for either option (shown as "NO_PRINT") will be disregarded and will neither count toward nor end a run of consecutive hourly odds values. If PredictionMarketOdds.com permanently ceases publishing hourly odds values for Marco Rubio or JD Vance in the "2028 Republican Nomination" listing before November 1, 2026, 12:00 AM ET, including by removing either option from the listing, this market will resolve based on the hourly odds values published up to that point.
If no hourly odds values have been published for both Marco Rubio and JD Vance between market creation and November 1, 2026, 12:00 AM ET, this market will resolve to "No".
If the underlying market is officially decided before the listed end date, this market will resolve to "Yes" if Marco Rubio is the outcome of the underlying market and otherwise to "No".
If a published hourly odds value is clearly erroneous as a result of a technical or operational error, this market may remain open for up to an additional 48 hours after that value is first published to allow for a correction. A corrected value will be used in place of the original. If no correction is published within that period, the original value will stand, and revisions published after that period will not be considered.
The resolution source for this market is PredictionMarketOdds.com, specifically the hourly odds values for Marco Rubio and JD Vance in the "2028 Republican Nomination" listing at https://predictionmarketodds.com/gop-nomination-2028.html and on each option's detail page, reached by clicking the option's name in the listing. Prices shown on any individual prediction market will not be considered.
Market Opened: Sep 21, 2026, 9:40 PM ET
Resolver
0x65070BE91...An hourly odds value is the value in the "Odds of Happening" column that PredictionMarketOdds.com publishes for an option for a one-hour "Time Window (ET)", as shown on the listing page and in the "Odds History" graph. Hourly odds values are compared at the precision published by PredictionMarketOdds.com (one tenth of a percent). An hour in which the two values are equal does not count as Marco Rubio being higher and ends any run of consecutive hourly odds values.
Hours for which PredictionMarketOdds.com publishes no hourly odds value for either option (shown as "NO_PRINT") will be disregarded and will neither count toward nor end a run of consecutive hourly odds values. If PredictionMarketOdds.com permanently ceases publishing hourly odds values for Marco Rubio or JD Vance in the "2028 Republican Nomination" listing before November 1, 2026, 12:00 AM ET, including by removing either option from the listing, this market will resolve based on the hourly odds values published up to that point.
If no hourly odds values have been published for both Marco Rubio and JD Vance between market creation and November 1, 2026, 12:00 AM ET, this market will resolve to "No".
If the underlying market is officially decided before the listed end date, this market will resolve to "Yes" if Marco Rubio is the outcome of the underlying market and otherwise to "No".
If a published hourly odds value is clearly erroneous as a result of a technical or operational error, this market may remain open for up to an additional 48 hours after that value is first published to allow for a correction. A corrected value will be used in place of the original. If no correction is published within that period, the original value will stand, and revisions published after that period will not be considered.
The resolution source for this market is PredictionMarketOdds.com, specifically the hourly odds values for Marco Rubio and JD Vance in the "2028 Republican Nomination" listing at https://predictionmarketodds.com/gop-nomination-2028.html and on each option's detail page, reached by clicking the option's name in the listing. Prices shown on any individual prediction market will not be considered.
Resolver
0x65070BE91...Vance maintains a consistent lead in national and early-state polling averages for the 2028 Republican presidential nomination, typically holding 15- to 25-point margins over Rubio among likely primary voters. Rubio has publicly stated he has no current plans to seek the nomination and would support Vance if the vice president runs, while the contest remains in its pre-midterm phase with no formal candidate announcements. These factors, combined with Trump's ongoing influence over party dynamics and the short window until October 31, underpin the 97% trader consensus against an immediate flip. A sudden shift could still occur if Rubio secures a high-profile diplomatic breakthrough or Vance faces an unforeseen setback before the deadline, though neither appears imminent based on recent developments.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


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