PARIS — A group affiliated with Russia’s intelligence agency launched a disinformation campaign against center-left MEP and likely presidential candidate in next year’s French election, Raphaël Glucksmann, he claimed in a post on X on Tuesday.

Glucksmann, who is expected to announce whether he will run for president in the coming weeks, said he had been informed by the French Secretariat-General for National Defence and Security of a “Russian operation” that was “directly controlled by the [Russian] GRU.”

Former Prime Minister Édouard Philippe, who is a confirmed presidential candidate, was also reportedly targeted by a Russian disinformation campaign last week. And several local candidates from the left-wing France Unbowed movement, known for its pro-Palestinian advocacy, were allegedly targeted by an Israeli firm earlier this year.

The alleged disinformation effort against Glucksmann involved an article posted on a website mimicking well-known left-wing news outlet Blast, as well as a social media clip claiming Glucksmann’s partner Léa Salamé — the host of French public television’s prime-time news program — had tried bribing other journalists to speak about his likely candidacy favorably.

Glucksmann is a prominent critic of the Russian government and took part in the 2013 Maidan uprising in Kyiv.

“Russian agencies have begun operations to destabilize the 2027 presidential election,” he wrote on social media. “This attack is merely a foretaste of what is to come.”

The Russian Embassy in Paris did not immediately respond to a request for comment.

As he nears the end of his term, French President Emmanuel Macron has said that safeguarding the 2027 presidential election from foreign interference would be a top priority.