Paris prosecutors opened an independent probe on May 27, 2026, to investigate whether three hard-left mayoral candidates from La France Insoumise (LFI) were targeted by a foreign state in smear campaigns before the March 2026 municipal elections [1, 2]. The candidates named are Sébastien Delogu in Marseille, François Piquemal in Toulouse, and David Guiraud in Roubaix, all affiliated with LFI [1, 2]. Jean-Luc Mélenchon, LFI leader, confirmed that "Three party figures were affected: Sebastien Delogu, Francois Piquemal, and David Guiraud" [2].
Prosecutors launched the probe on their own initiative, without any formal complaint or referral [1, 2]. The investigation focuses on deceptive websites, social media accounts, fabricated content, and disparaging digital ads aimed at damaging the candidates’ reputations [1, 2]. Viginum, the French service monitoring foreign digital interference, identified automated systems spreading misleading content targeting LFI candidates [2].
Authorities suspect an Israeli company, BlackCore, described as an elite influence, cyber, and technology firm, is behind the smear efforts, though this remains unconfirmed [1]. French law defines foreign interference strictly as actions by foreign states; if individuals or companies act independently, it may not legally qualify as foreign interference [1].
The smear campaigns coincided with the candidates’ outspoken support for Palestinian issues and Gaza, themes seen as motivating the attacks [2]. LFI has faced accusations of antisemitism by critics, which the party denies, and their economic policies raise concern among business circles due to their high tax proposals [1].
The inquiry will incorporate elements from ongoing probes in Marseille and Toulouse and use resources from a specialized national cyber police force [1]. French Interior Minister Laurent Nunez said a week before May 27 that judicial action had already begun on suspicions of foreign digital interference targeting LFI candidates [2].
