In the second round of the 2026 municipal elections, Jean-Luc Mélenchon's La France insoumise (LFI) won Roubaix, Creil, Vénissieux, and La Courneuve, following Saint-Denis in the first round. However, alliances with the rest of the left failed in the vast majority of cases, including in Toulouse, Besançon, Strasbourg, and Limoges.
The 2026 municipal elections concluded on March 22 with a second round where La France insoumise (LFI), led by Jean-Luc Mélenchon, secured limited victories despite a strong first-round showing. Following its win in Saint-Denis in the initial vote, LFI took Roubaix with David Guiraud at 53.19% of the votes, Vénissieux in the Rhône, Creil in the Oise, and La Courneuve in Seine-Saint-Denis. These successes are concentrated in areas like Seine-Saint-Denis, the Nord, Hauts-de-Seine, Rhône, and Val-d'Oise, with seven LFI candidates in Seine-Saint-Denis or Nord, five in Hauts-de-Seine, and four in Rhône and Val-d'Oise. Overall, 51 LFI candidates advanced to the second round, plus three labeled 'extreme left' by the Interior Ministry in Quimper, Couëron, and Avignon. However, fusions and alliances with socialists and ecologists largely failed. In Toulouse, François Piquemal got 46.13% against Jean-Luc Moudenc's 53.87%. In Besançon, outgoing Green mayor Anne Vignot, allied with LFI, lost to right-wing Ludovic Fagaut. Similar defeats occurred in Strasbourg and Limoges, where Damien Maudet fell to Guillaume Guérin. This results map highlights LFI's major role in large cities and Paris's red belt, but without widespread success in inter-round negotiations.