Former Berlin Finance Senator Peter Kurth maintains contacts with right-wing extremists. But there are open questions about his CDU membership.

Secretary General Carsten Linnemann tries to explain. Once a liberal hopeful, Kurth was once considered one of the hopes of a liberal metropolitan CDU in Berlin. He invited people to a meeting on his roof terrace in Berlin last July, which included the AfD politician Maximilian Krah, now the party's top candidate for the European elections.