Jean-Luc Mélenchon addresses his supporters at the large Front de gauche campaign rally on April 19, 2012. This platform-facing image provides a political backdrop to his new promise of ecological redistricting. Credits: Rémi Noyon / Flickr / CC BY-SA 2.0.
Jean-Luc Mélenchon wants to put regional redistricting back at the center of ecological planning. On June 7, 2026, in Saint-Denis, the declared candidate for the 2027 presidential election defended regions restructured around rivers. LFI presents the idea as a response to the water crisis, but its cost, responsibilities, and boundaries remain to be specified.
Why Does LFI Want To Redraw Regions Around Water?
In his campaign launch speech, Jean-Luc Mélenchon summed up the measure in one phrase. Regions would be restructured around the major river drainage basins. They would become a frontline of ecological planning. Behind this image, LFI advances a simple idea. Political institutions should follow the actual flow of water, rather than the boundaries inherited from territorial reforms.
A watershed designates a territory where waters converge toward the same watercourse, then toward an outlet. The logic is therefore physical before it is political. What happens upstream can alter the water, flood risks, or the state of aquatic environments downstream. For LFI, a local government built at this scale would better address pollution and river restorations. It would also oversee agricultural, industrial, or urban water uses that impact the resource.
This proposal reprises an orientation already present in Mélenchon/LFI’s 2025 program. It foresees redrawing the Regions based on watersheds. It also intends to assign them primary responsibility for water and to make the water agencies a foundation of ecological planning. The measure fits within a campaign where the founder of La France insoumise links Sixth Republic, decentralization and ecological transition.
Six Basins, Twelve Basins, Twenty-Four Sub-Basins
The difficulty starts with the numbers. In everyday language, people often refer to the major watersheds of mainland France. The current administrative framework for water is more granular. The Ministry of Ecological Transition notes that France is divided into 12 basins. They are governed by basin committees and supported, in metropolitan France, by water agencies.
According to Franceinfo, LFI deputies Claire Lejeune and Gabriel Amard are working on this project. They are instead considering modeling future authorities on 24 metropolitan sub-basins. However, this is an internal LFI option still under development. The boundaries of future ecoregions are not finalized. No official map has been presented at this stage. The goal would be to draw authorities closer to rivers, their tributaries, and water-use zones.
The term ecoregion can, however, be misleading. At this stage it is not a settled legal status nor an officially published map. In June 2026, the project remains under construction. Exact boundaries, responsibilities, specific taxation and coordination with existing authorities are not decided. The timeline reported by Franceinfo foresees expert hearings in July 2026. Details could follow at the end of August 2026, before a program publication around October 2026.
An Idea That Aligns With Water-Based Management Already In Place
France is not starting from a blank slate. Water policy already relies on basin-based governance. It combines basin committees, water agencies, planning schemes and the GEMAPI competency. The latter, assigned to intermunicipal authorities since January 1, 2018, covers aquatic environment management and flood prevention.
LFI’s proposal therefore does not only consist of creating a new map. It would potentially shift the institutional center of gravity. Ecoregions would become political authorities primarily responsible for water and ecology. The current system instead combines State, regions, departments, intermunicipalities, prefects, water agencies and specialized offices.
This overlap explains part of the interest in the debate. For supporters of regional redistricting, the current management too often requires coordinating multiple authorities over the same watercourse. For critics or the cautious, the problem is not only geographic. It also lies in funding, legal powers and tackling pollution at the source.
Funding Remains The Hard Point
The budget is one of the blind spots of the project. Water agencies already fund restoration works, pollution-control actions and soil-related operations. They are funded by fees, but their resources are capped by limits set in the finance law.
Franceinfo quotes Nicolas Mourlon, director general of the Rhône-Méditerranée-Corse agency. He estimates the budget of the six water agencies at around €2.4 billion per year. The same article reports that his agency is capped at €600 million. It had to defer more than €100 million of projects in 2025, after the 2024 cap was reached. These figures illustrate a central issue: creating or transforming authorities does not automatically resolve the question of available revenue.
A regional redistricting would also require clarifying the fate of responsibilities already exercised by current regions. The authorities created by the 2015 reform are involved in transport, training, economic development, high schools, and planning. LFI speaks of ecoregions focused on the ecological transition. But the movement has not yet detailed what would be retained, transferred, or removed.
What The Measure Does Not Allow Us To Assert
At this stage, it would be excessive to write that LFI simply wants to abolish the regions or that redistricting alone would depollute the rivers. The proposal concerns territorial restructuring around water, not a single technical fix. It seeks to provide more coherence between upstream and downstream. But agricultural, industrial, and urban pollution must also be reduced where they originate.
Institutional feasibility also remains open. Such a change would require a law, perhaps a broader decentralization reform, and significant financial decisions. It would also be necessary to determine whether these ecoregions would replace current regions. Another option would be to add them, in one way or another, to existing structures. That is precisely what makes the subject political. It is not only about water, but about local power, taxation and ecological priorities.
For now, Mélenchon’s idea of regions around rivers functions as a programmatic marker. It is not yet a ready-to-use reform. It raises a real question: how do you govern a territory when waterways ignore administrative borders? LFI’s answer will still have to withstand the test of maps, budgets and law.