Question: What position was held between 2013 and 2015 by a man placed under investigation by ruling political party of the People's Republic of China on June 26, 2015?
Sentence (from "Communist Party of China"): the communist party grew quickly, and by 1949 the CPC had driven the nationalist Kuomintang (KMT) government from mainland China after the Chinese Civil War, thus leading to the establishment of the People's Republic of China.
Relevant evidence: No