Next French Presidential Election
I assess a low but non-negligible probability that Marine Le Pen will win the 2027 French presidential election, driven by the growth of the far-right electorate and potential fragmentation of anti-RN forces, but constrained by the two-round system and the historical tendency of voters to coalesce to block a Le Pen presidency.
Analysis
Market prices currently imply a very low chance for Marine Le Pen (about 5.5% yes), reflecting mainstream expectations that the two-round system and broad anti-far-right sentiment make a Le Pen victory unlikely. The market has considerable volume, suggesting these odds incorporate a wide set of views and some informed capital, but markets can underprice tail events when structural political shifts are possible.
Historically, Le Pen and the Rassemblement National improved their vote share between 2017 and 2022—Le Pen reached the second round in both elections and increased her second-round share from the mid-30s to roughly low-40s percent—showing an upward trend in base support but also demonstrating the persistent barrier posed by the runoff where large blocs of voters have consolidated against her. The French two-round format tends to favor broad coalitions in the runoff and penalizes candidates who cannot expand beyond their core base, which is the single largest structural obstacle for a Le Pen presidency.
Political and social trends could plausibly raise her odds: long-running concerns about immigration, security, economic stagnation, and Eurosceptic currents can amplify RN appeal, while fragmentation of center and left parties or an unpopular mainstream candidate could lower the effective threshold for a Le Pen victory. Conversely, legal risks, internal party management issues, or a credible, unified anti-RN alternative could sharply reduce her chances; these are important uncertainties that make forecasting at this long horizon probabilistic rather than deterministic.
Given the above, I place the probability materially above the market-implied 5.5% but well below even odds because the structural mechanics of French presidential contests still strongly favor a non-RN candidate in most plausible scenarios; 12% reflects a balanced view that allows for both further RN growth and a strong anti-Le Pen mobilization in the decisive runoff phase.
Arguments
For
- Le Pen benefits from a solid and growing core electorate that has increased its national vote share across recent cycles.
- Persistent economic and security anxieties could push undecided or swing voters toward RN's platform.
- If the center and left remain fragmented, Le Pen can reach a runoff without needing majority support in the first round.
- A weak or unpopular mainstream opponent could fail to galvanize the broad anti-Le Pen coalition needed in the second round.
Against
- The two-round system almost always forces a broad anti-far-right coalition in the runoff that historically blocks Le Pen.
- Many French voters who reject RN ideology have historically voted tactically to prevent a Le Pen presidency.
- Le Pen still carries political baggage and polarizing policy positions that limit her crossover appeal to centrists.
- Potential legal exposures, internal party fractures, or campaign missteps could erode support in a tight contest.
Key drivers
- Le Pen's ability to expand support beyond her core base to attract center-right and undecided voters in a runoff.
- The fragmentation or unity of the non-RN field in the first round and whether a single anti-RN alternative consolidates for the second round.
- The broader socio-economic context (inflation, unemployment, crime perceptions) that can shift voter priorities toward RN messaging.
- Turnout dynamics in the runoff, particularly whether anti-Le Pen voters mobilize or abstain at higher rates.
- Performance and public perception of incumbent or mainstream candidates between now and the election, including scandals or policy failures.
- EU and international events that could magnify nationalist or sovereignty-focused rhetoric benefiting RN.
Risk factors
- A united and credible anti-RN coalition emerging that consolidates the majority in the runoff.
- Legal challenges or investigations that damage Le Pen's public standing or campaign viability.
- A significant shift in public opinion caused by an economic rebound or successful government reforms reducing RN appeal.
- High turnout among centrist and left-leaning voters in the runoff that dilutes RN's relative share.
- The emergence of a charismatic new right-wing candidate who draws away RN support or reframes the debate.
- Polling and forecasting errors and late information shocks that markets and bettors may not anticipate.
Scenarios
Best case
Le Pen significantly broadens her appeal by moderating messaging and attracting center-right defectors while anti-RN forces remain fragmented, enabling her to win a contested runoff with narrow majority support.
Most likely
Le Pen reaches the second round again or is a strong first-round contender, but the plurality of non-RN voters coalesce against her in the runoff and she falls short of the 50% needed to win, leaving the presidency to a mainstream candidate.
Worst case
A unified mainstream coalition forms around a single anti-RN candidate, turnout among anti-Le Pen voters is high in the runoff, and Le Pen is decisively defeated with a margin comparable to or larger than 2022.
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