politics as the assistant to the minister of finance during 1993–94, while continuing his studies in Japan. He has been a member of parliament (MP) for Phnom Penh since 1998. He was also Chairman of Parliamentary Commission on Interior, National Defense, and Civil Service Administration from 2005 to 2008 in the National Assembly. In January 2015, he became Secretary General of the Parliamentary Minority Group. In January 2015, he became Secretary General of the Parliamentary Minority Group. In December 2016 following Sam Rainsy's exile, he became Deputy Leader of the Opposition until the position was abolished by Parliament on 31 January 2017. References External links BBC: "Cambodia opposition boycott opening of parliament" 1964 births Living people Members of the National Assembly (Cambodia) Candlelight Party politicians Cambodia National Rescue Party politicians People from Phnom Penh