Who will win the 2027 French presidential election and become the next President of France?

rationale:

Marine Le Pen (38%) is the modal winner due to a decisive reduction in her legal risk and unprecedented polling strength. The Paris Court of Appeal upheld her conviction but reduced the ineligibility penalty to 45 months with 30 suspended; the 15 firm months were backdated and are already deemed served en.wikipedia.orglemonde.fr. Furthermore, because the prosecutor did not file its own pourvoi en cassation, the non-reformatio in pejus principle ensures the supreme court cannot increase her sentence franceinfo.fr. Her pending appeal suspends the remaining electronic-bracelet penalty tf1info.fr. With her ballot access highly secure, Jordan Bardella (6%) is now relegated to a low-probability contingency substitute rather than a co-equal contender.

Despite an exceptionally strong polling environment where Le Pen leads the first round at 34–37% and wins every tested runoff—including 51–54% against Philippe and 67–70% against M00lenchon en.wikipedia.orgfr.wikipedia.orgifopgroup.com—her probability remains well short of a coin flip. French presidential campaigns are highly volatile nine months out, and historical base rates consistently show the National Rally underperforming its early runoff polls, as seen in 2017 and 2022 archives-resultats-elections.interieur.gouv.frconseil-constitutionnel.fr. While the "republican front" is visibly eroding, structural barriers to an RN victory still require shading her odds below what raw polling implies.

01douard Philippe (25%) remains the most credible non-RN path to the presidency. He consistently polls as the strongest anti-RN option in a runoff configuration bbc.com and has begun consolidating support, recently securing Darmanin's endorsement ladepeche.fr. However, the center and right remain unsettled. Gabriel Attal (5%) is actively campaigning to overtake Philippe, and Bruno Retailleau (3%) is the official LR nominee lemonde.fren.wikipedia.org. This fragmentation elevates the risk of vote-splitting in the first round, preventing Philippe from achieving higher ex-ante probabilities reuters.com.

The Left faces severe structural and coordination deficits, limiting their overall win probability. The "united left" primary planned for October 2026 has effectively collapsed after La France Insoumise, Place Publique, and the Socialist Party rejected an open unifying process fr.wikipedia.orgen.wikipedia.org. Jean-Luc M00lenchon (5%) maintains a solid first-round floor in the mid-teens but faces catastrophic runoff margins against the far-right ifopgroup.com. Rapha0bl Glucksmann (3%) has broader runoff appeal but lacks a clear path through a fractured first round.

Finally, a 13% probability for "Other" is essential to capture the persistent unpredictability of French politics. In August 2016, neither Emmanuel Macron nor Fran27ois Fillon led the polls; campaign shocks are the norm. This tail accounts for an unforeseen centrist insurgent, late entries (such as Fran27ois Hollande), or snap-election scenarios triggered by the current precarious government stability fr.wikipedia.org.