Home › Politics › Will Kamala Harris win the 2028 US Pre...

Will Kamala Harris win the 2028 US Presidential Election?

4.6%

Consensus Probability (Model A — Inverse-Variance Log-Odds)

4 platforms · 2pp spread · $7.4M

Across 4 prediction market platforms, "Will Kamala Harris win the 2028 US Presidential Election?" has a consensus probability of 4.6%. Polymarket: 5.2%, Gemini: 6.0%, Manifold: 3.6%, Predictit: 6.0%. Consensus via geometric mean of odds (Satopaa et al., 2014), validated by IARPA ACE tournament.

Platform Comparison — white line = consensus

Polymarket
View →

$7.4M

Gemini
View →

$44K

Manifold
View →

1078 traders

Predictit
View →

$8K

Probability Over Time

All 4 Consensus Models

Market Details

Polymarket

Updated 27d ago

Volume

$7.4M

Liquidity

$225K

Bid / Ask

5.1% / 5.3%

Spread

0.2%

Opened

Apr 2026

Resolves

Nov 2028

The 2028 US Presidential Election is scheduled to take place on November 7, 2028. This market will resolve to the person who wins the 2028 US Presidential Election. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once a…

Gemini

Updated 3h ago

Volume

$44K

Liquidity

—

Bid / Ask

— / —

Spread

—

Opened

Apr 2026

Resolves

Nov 2028

Manifold

Updated 3h ago

Volume

—

Liquidity

—

Bid / Ask

— / —

Spread

—

Opened

Apr 2026

Resolves

Nov 2028

Predictit

Updated 3h ago

Volume

$8K

Liquidity

—

Bid / Ask

— / —

Spread

—

Opened

Apr 2026

Resolves

—

About This Consensus

Computed from 4 platforms using geometric mean of odds (Satopaa et al., 2014). This method was validated by the IARPA ACE forecasting tournament as the most accurate probability aggregation technique. Full methodology →