German Chancellor Angela Merkel reacts prior to the election of new chairperson of Germany's Christian Democratic Union (CDU) during the party conference in Hamburg, Germany, on Dec. 7, 2018. Annegret Kramp-Karrenbauer was elected new chairperson of Germany's ruling Christian Democratic Union (CDU) at the party's 31st national congress here on Friday, succeeding Chancellor Angela Merkel who has led the party for 18 years. (Xinhua/Shan Yuqi)