While attending Waseda University in Japan, he participated in February 8 Independence Declaration. He came to Hawaii at Dr. Syngman Rhee’s suggestion and joined Dong Ji Hoe. He was active in writing as a chief editor for people’s enlightenment. He founded Shin Han Min Bo newspaper in New York in 1928. He also worked as a member of U.S. Committee of the Provisional Government during 1929 and 1937. Under the Liberal Party of Syngman Rhee, he served as a Minister of Home Affairs and as the Mayor of the City of Seoul. In 1982, the South Korean government recognized him with the Order of Merit of National Foundation / National Foundation Commendation for his contribution toward the Korean independence movement in America. However, this award was later revoked for his pro-Japanese past in 2010.