Who will run for the Republican presidential nomination in 2028?

Prediction markets currently give a 58% probability that Who will run for the Republican presidential nomination in 2028?. This contract trades at 58¢ on Kalshi, closing January 1, 2028. This Marco Rubio 2028 nomination market shows a significant asymmetry in yield opportunities, with the "No" side offering 84.1% implied yield versus 40.6% for "Yes," suggesting the market may be pricing in structural uncertainty rather than fundamental doubt about his candidacy.

███████████████████████░░░░░░░░░░░░░░░░░
58¢
Bid/Ask 58/59¢·Spread 1¢·Vol $423.5·OI $11,162.32·Closes Jan 1, 2028·620d remaining
KX2028RRUN-28-MRUB
7-day price22 snapshots · 3 regime
64¢58¢ current
Apr 958¢Apr 21

Analysis

4d ago

This Marco Rubio 2028 nomination market shows a significant asymmetry in yield opportunities, with the "No" side offering 84.1% implied yield versus 40.6% for "Yes," suggesting the market may be pricing in structural uncertainty rather than fundamental doubt about his candidacy. The recent 4-cent price decline over seven days (63¢ to 59¢) combined with thin 24-hour volume of just $503 indicates low conviction and liquidity constraints, making the current 62% probability potentially vulnerable to larger moves. With 625 days to expiration and minimal cliff risk, the market has ample time for information to resolve, but the high yield differential warrants caution about whether this reflects genuine ambiguity or simply illiquid pricing.

Cross-venue

Also on polymarket at 20¢+38¢)

View counterpart →Match confidence 0.88IY 157.0%Close-time delta 7449h

Resolution rules

If Marco Rubio announces a presidential campaign to contest the presidential nomination of the Republican party for the 2028 U.S. presidential election before Jan 1, 2028, then the market resolves to Yes.

Indicators

IY (Yes) 42.6%
IY (No) 81.3%
Adj IY 41%
CRI 1
Overround 6.9%
▶ Full indicator table (5)
IndicatorValue
IY (Yes)42.6%
IY (No)81.3%
Adj IY41%
CRI1
Overround6.9%

Regime

Label
neutral
Score
0.341
Computed
4/21/2026, 8:13:47 PM
Observability lowEvent type political
Indicators computed 4/21/2026, 8:08:17 PM

Trade

View on kalshisf trade KX2028RRUN-28-MRUB yes 100

Related concepts

Related Prediction Market Questions