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2028 Democratic Nominee for President? — Kamala Harris

5.4%
Consensus Probability (Model A — Inverse-Variance Log-Odds)
2 platforms · 1pp spread · $217K

Across 2 prediction market platforms, "2028 Democratic Nominee for President? — Kamala Harris" has a consensus probability of 5.4%. Gemini: 6.0%, Manifold: 4.7%. Consensus via geometric mean of odds (Satopaa et al., 2014), validated by IARPA ACE tournament.

Platform Comparison — white line = consensus
Gemini
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6%
$217K
Manifold
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5%
2354 traders
Probability Over Time
All 4 Consensus Models
Market Details
Gemini
Updated 4d ago
Volume
$217K
Liquidity
—
Bid / Ask
— / —
Spread
—
Opened
Apr 2026
Resolves
Nov 2028
Manifold
Updated 1h ago
Volume
—
Liquidity
—
Bid / Ask
— / —
Spread
—
Opened
Apr 2026
Resolves
Feb 2029

About This Consensus

Computed from 2 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 →

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