Cardboard stands with the AfD logo lie on the chairs in the Wiesenhalle before the start of the AfD Brandenburg state party conference. Traditionally, young voters are seen as more left-leaning, but the voting data suggests some divergences, with experts pointing to social media and what they describe as online echo chambers. A study published earlier this month showed that over half of those aged 14-29 in Germany use social media to stay updated about news and politics. But Berendsen told CNBC that it is one of the social media platforms where the tunnel-effect can be an issue. An AfD spokesperson confirmed to CNBC that its videos and texts posted on social media are tailored to young people.

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Persons: Monika Skolimowska, Infratest Dimap, Eva Berendsen, Anne Frank, Baerbock, Maximilian Krah, TikTok, Berendsen Organizations: Getty, Russia, Anne, CNBC Locations: Hesse, Germany