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PoliticsOddsas of Aug 29, 21:00 UTC

2028 Republican VP nominee

MHMarcus Halloran · Politics & Elections Editor Resolves Nov 7, 2028Total volume $291K2 platforms

Price history

Implied probability over time
Outcome
Side
Platforms (max 3)
KalshiPolymarket
26%29%33%22 Aug24 Aug25 Aug27 Aug28 Aug29 Aug

Where to back Marco Rubio

Every independent platform that prices this outcome, best price after fees first. The buttons are affiliate links. We may earn a commission if you sign up, and it never changes the odds you see or what you pay.

1
Kalshi4.9Best odds
The first CFTC-regulated US event exchange
Marco Rubioafter fees28%27% price + 1.4% entry fee
Volume$281K
Min · feesNone · Per-contract trading
Trade
2
Polymarket5.0
The largest on-chain prediction market
Marco Rubio32%no entry fee
Volume$10K
Min · feesNone · No trading
Trade

Ranked by the effective price after each platform's own entry fee. Fees shown are each platform's own and may change. We don't set or control them. Betting exchanges (e.g. Matchbook, Smarkets) instead charge commission on winnings, so they stay at their raw price here.

Implied probability by platform

Lowest raw implied price per outcome in gold · click a row
OutcomeKalshi4.9Polymarket5.0
Marco Rubio27%32%
J.D. Vance5%8%
Donald J. Trump4%16%
Glenn Youngkin4%3%
Sarah Huckabee Sanders3%3%
Katie Britt3%5%
Elise Stefanik2%5%
Josh Hawley2%6%
Brian Kemp2%5%
Tulsi Gabbard2%11%
Nikki Haley1%3%
Ron DeSantis1%3%
Greg Abbott1%5%

These are raw implied probabilities; gold marks the lowest raw price. The Best odds above ranks by the price after each platform's entry fee, so the best place to trade can differ from the lowest raw number here.

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