Raphaël Glucksmann leads the Socialist Party and Place publique primary for the 2027 French presidential nominee at 67.5% implied probability, well ahead of Olivier Faure at 20.5% and lower-priced alternatives. His position stems from stronger national polling in the social-democratic space, pro-European positioning, and endorsements from figures including Anne Hidalgo and Daniel Cohn-Bendit. The October 9-17 closed primary, limited to party members and affiliated sympathizers after a July membership vote rejected a broader open format, favors Glucksmann’s established base over Faure’s party apparatus. Faure’s late-August entry added competition but has not shifted the consensus ahead of formal candidate filings closing September 15. The primary outcome will determine the nominee and influence broader left coordination.