 Complete the following phrase:  Choe was appointed the first-ranking vice-chairman of the NDC in April 2014, apparently reinforcing his number two position, but he was replaced by newly appointed Vice Marshal Hwang Pyong-so as chief of the KPA politburo, and was officially demoted from the NDC after only five months, thus ending his involvement in military affairs. North Koreas news agency reported later on that he was party secretary in charge of labor organizations and chairman of the State Physical Culture and Sports Guidance Commission, a post previously held by Jang Song-thaek, and then part of a delegation to South Korea to attend the closing ceremony of the Asian Games. He was also restored to his Presidium position in late October, and finally demoted from it next February, although he remained a high-ranking member of the Politburo. Reports suggested arrogance and bad reputation among the elites as reasons leading to his downgrading. He was, however, reelected as a Presidium member at the 