Complex sentence: He has also served as Assistant to the President and Cabinet Secretary for United States President Barack Obama from 2009 to 2013, as well as the co-chair of the White House Initiative on Asian Americans and Pacific Islanders.
Split into simpler sentences: He has also served as Assistant to the President and Cabinet Secretary for United States President Barack Obama from 2009 to 2013. He also served as the co-chair of the White House Initiative on Asian Americans and Pacific Islanders.