In the Gironde department, the upcoming senatorial elections on September 27 have become a key battleground for political competition among the National Rally (RN), the green party, and the left. In 2020, ecologist Monique De Marco made history by becoming the first green senator in the region, defeating the RN candidate Edwige Diaz. However, six years later, the green party seems to be losing momentum, while the RN is trying to solidify its presence in the upper house of the French Parliament. The RN, led by Marine Le Pen, currently has three senators and is working to expand its influence, particularly in the southeast and southwest of France. In Gironde, Edwige Diaz, the RN candidate, is aiming to secure the tenth seat needed for the party to form a group in the Senate. While she has not yet reached that goal, she is actively campaigning in the region. Le Pen recently visited Porge, a commune affected by a large fire, to support Diaz in her race against Romain Dostes of the green party. Romain Dostes, who has lost the green party's traditional stronghold in Bègles, is concerned about the possibility of an RN senator being elected. He has called for a united left front but expressed frustration over the lack of support from the Socialist Party (PS) and the Left (LFI), which he believes arrived too late with their unity appeal. Meanwhile, the left is showing signs of disunity, as seen in the mayoral race where outgoing Radical Party member Nathalie Delattre is running alongside Thomas Cazenave of the Renaissance party. Delattre's list is expected to win three of six seats, while the socialists may gain two. Political observers suggest that the competition among left-wing candidates might actually benefit Edwige Diaz. Christine Bost, second on the socialist list, has urged voters to cast "useful votes" to prevent an RN win. Aminata Pouye, the Melanchonist candidate, pointed out that the ecologists did not ally with LFI in the recent Bordeaux municipal elections, and the PS has since made a deal with Thomas Cazenave. She suggested that the ecologists' performance might still be stronger than expected. Political scientist Ludovic Renard noted that the election is likely to be very close, with Delattre benefiting from her strong local connections and the support of Gérard Larcher, the president of the Senate. However, there could be a shift among rural mayors, who might reject President Macron's policies and instead support the RN. Edwige Diaz, who positions herself as a "candidate of rural areas," has the backing of three winemakers and is targeting small mayors without political affiliations. She is the only right-wing candidate facing Nathalie Amouroux, deputy mayor of Thomas Cazenave in the Gironde capital. In 2020, the outcome of the sixth seat was decided by just a few votes. Earlier this year, an error made by a running mate during the designation of electors in a commune, reported by the newspaper Sud Ouest, cost the Le Pen candidate two votes, highlighting the narrow margins that can decide such elections.