Will Christian Estrosi win the 2026 Nice mayoral election?

Analysis

All 8 agents converge on Estrosi being the underdog despite incumbency. The critical evidence is not just the 10-point polling deficit but the 42% base defection rate — this is not a normal incumbency challenge where historical base rates apply. Agents 4 and 5 provided the strongest evidence by identifying Chesnel-Le Roux's explicit refusal to withdraw (making triangulaire likely, which all agents agree is fatal for Estrosi) and the second-round duel showing Ciotti still ahead 51-49. The ensemble mean of 34.9% appropriately discounts the 75% incumbency base rate given these exceptional circumstances. The market at 43.5% appears to overweight incumbency advantage and underweight the specific polling and structural evidence against Estrosi. Edge of ~8.5% with specific verifiable evidence supports a TRADE_NO recommendation, though confidence is moderate given reliance on a single poll and the election potentially having already occurred.

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