epa11321389 Chairman of the Christian Democratic Union (CDU) party and faction Friedrich Merz reacts after delivering a speech during the Christian Democratic Union (CDU) party convention in Berlin, Germany, 06 May 2024. The federal party convention of the Christian Democratic Union (CDU) takes place from 06 to 08 May in Berlin. EPA/FILIP SINGER

epa11321121 Berlin Governing Mayor Kai Wegner speaks during the Christian Democratic Union (CDU) party convention in Berlin, Germany, 06 May 2024. The federal party convention of the Christian Democratic Union (CDU) takes place from 06 to 08 May in Berlin. EPA/FILIP SINGER

epa11321107 Delegates use voting booths during the Christian Democratic Union (CDU) party convention in Berlin, Germany, 06 May 2024. The federal party convention of the Christian Democratic Union (CDU) takes place from 06 to 08 May in Berlin. EPA/FILIP SINGER