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Politico (8 July 2025)

Nicholas Vinocur, Max Griera, Nette Löstlinger

Von der Leyen's chief of staff is the man to call to get things done in Brussels. But for a growing number of critics, he has too much control.

He’s known as the man to call to get things done in Brussels. He leans on party bosses to exert his sway over the European Parliament. And he manages the European Commission, an institution of 32,000 employees, like an extension of his brain, watching over everything from social media posts to mid-level staff appointments.

Commission President Ursula von der Leyen’s right-hand man, Bjoern Seibert, is the ultimate behind-the-scenes Brussels power broker.

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