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Who will win the 2028 New Hampshire Republican presidential primary? — Nikki Haley

4.3%
Consensus Probability (Model B — Geometric Mean of Odds)
2 platforms · 7pp spread

Across 2 prediction market platforms, "Who will win the 2028 New Hampshire Republican presidential primary? — Nikki Haley" has a consensus probability of 4.3%. Manifold: 9.2%, Predictit: 2.0%. Consensus via geometric mean of odds (Satopaa et al., 2014), validated by IARPA ACE tournament.

Platform Comparison — white line = consensus
Manifold
View →
9%
14 traders
Predictit
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2%
Probability Over Time
All 6 Consensus Models
Market Details
Manifold
Updated 2h ago
Volume
Liquidity
Bid / Ask
— / —
Spread
Opened
Apr 2026
Resolves
Sep 2028
Predictit
Updated 21d ago
Volume
Liquidity
Bid / Ask
— / —
Spread
Opened
Apr 2026
Resolves

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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