2028 Republican VP NomineeMarco Rubio is the favorite at 28%
Kalshi has Marco Rubio at 26% and Polymarket at 30%. Over the past week on Kalshi, Katie Britt gained 1 point, to 3.9%, and Marco Rubio lost 2 points, to 26%.
About 1 in 4 Down 2 pts this week (Kalshi)
Average of Kalshi (26%) and Polymarket (30%).
Prices to buy now. $100 on Kalshi at the ask pays $370 if correct, before fees.
About 1 in 17
Polymarket 5.8%, quote from Oct 9, 12:36 AM ET.
Last trades. Polymarket's quote is stale (observed Oct 9, 12:36 AM ET) and may have moved.
2028 Republican VP nominee
Kalshi: $2K (72%) · Polymarket: $857 (28%)
Kalshi: Nov 7, 2028 · Polymarket: Aug 14, 2028
Prices to buy each outcome, or the last trade where no one is selling. Some quotes are stale: they weren't observed recently and may have moved. Tap a price to open Kalshi and Polymarket.
| Outcome | Average | Kalshi | Polymarket | Sources | |
|---|---|---|---|---|---|
| Marco Rubio | 28% | Kalshi27¢ | Polymarket30¢ | ||
| Marjorie Taylor Greene | 5.8% | KalshiNot listed | Polymarket6.1¢ | ||
| J.D. Vance | 5.6% | Kalshi5.7¢ | Polymarket5¢ | ||
| Thomas Massie | 5.2% | KalshiNot listed | Polymarket5.2¢ | ||
| Ivanka Trump | 4.2% | KalshiNot listed | Polymarket8.4¢ | ||
| Donald J. Trump Jr. | 4.2% | Kalshi4.2¢ | Polymarket4.9¢ | ||
| Katie Britt | 3.9% | Kalshi5¢ | Polymarket0.70¢ | ||
| Joe Kent | 2.6% | KalshiNot listed | Polymarket4¢ | ||
| Erika Kirk | 2.6% | Kalshi3.6¢ | Polymarket1¢ | ||
| Sarah Huckabee Sanders | 2.5% | Kalshi2.8¢ | Polymarket1.2¢ | ||
| Ron DeSantis | 2.3% | Kalshi2.9¢ | Polymarket0.70¢ | ||
| Donald J. Trump | 2.2% | Kalshi2.3¢ | Polymarket4.4¢ | ||
| Tucker Carlson | 2.1% | KalshiNot listed | Polymarket5.7¢ | ||
| Tulsi Gabbard | 2.1% | Kalshi2.4¢ | Polymarket1.1¢ | ||
| Kristi Noem | 2% | KalshiNot listed | Polymarket0.40¢ | ||
| Byron Donalds | 1.9% | Kalshi2.1¢ | Polymarket0.85¢ | ||
| Glenn Youngkin | 1.8% | Kalshi2.4¢ | Polymarket0.70¢ | ||
| Elise Stefanik | 1.6% | Kalshi2¢ | Polymarket0.60¢ | ||
| Eric Schmitt | 1.5% | Kalshi2¢ | PolymarketNot listed | ||
| Tim Scott | 1.5% | Kalshi2¢ | PolymarketNot listed | ||
| Josh Hawley | 1.4% | Kalshi1.7¢ | Polymarket2.2¢ | ||
| Ted Cruz | 1.3% | Kalshi1.4¢ | Polymarket8.6¢ | ||
| Nikki Haley | 1.2% | Kalshi1.5¢ | Polymarket0.90¢ | ||
| Vivek Ramaswamy | 1.2% | KalshiNot listed | Polymarket2.5¢ | ||
| Robert F. Kennedy Jr. | 1.1% | Kalshi1.5¢ | Polymarket0.60¢ | ||
| Eric Trump | 1% | KalshiNot listed | Polymarket0.90¢ | ||
| Kim Kardashian | 1% | KalshiNot listed | Polymarket0.20¢ | ||
| Pete Hegseth | 0.9% | KalshiNot listed | Polymarket0.60¢ | ||
| Brian Kemp | 0.8% | Kalshi0.90¢ | Polymarket1.7¢ | ||
| Rand Paul | 0.8% | KalshiNot listed | Polymarket0.20¢ | ||
| Greg Abbott | 0.7% | Kalshi0.90¢ | Polymarket0.80¢ | ||
| Mike Pence | 0.6% | KalshiNot listed | Polymarket0.20¢ | ||
| Elon Musk | 0.6% | Kalshi0.90¢ | Polymarket0.20¢ | ||
| Steve Bannon | 0.6% | KalshiNot listed | Polymarket0.70¢ | ||
| John Thune | 0.4% | Kalshi0.50¢ | Polymarket0.50¢ | ||
| Tom Brady | 0.4% | KalshiNot listed | Polymarket0.20¢ | ||
| Matt Gaetz | 0.3% | Kalshi0.40¢ | Polymarket0.20¢ | ||
Kalshi: OpenPolymarket: Open Average is the mean of each venue's price for the outcome, where it lists one (a quote more than two hours old is left out while another venue's is newer): the midpoint of Kalshi's bid and ask; Polymarket's displayed price, or the midpoint of its bid and ask. Source: Kalshi / Polymarket via DeFi Rate, observed between Oct 9, 12:36 AM and 4:33 AM ET.
Kalshi 26% and Polymarket 30%: 3.5 points apart. Our figure is their average.
Over the past week on Kalshi, Katie Britt gained 1 point, to 3.9%, and Marco Rubio lost 2 points, to 26%.
Source: Kalshi daily close via DeFi Rate, Aug 8 to Oct 8 (UTC days). A day without a close is left out.
Biggest moves, last 7 days
Change in percentage points over 7 days, from daily closing prices to the latest observation (Oct 9, 4:29 AM ET).
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