While he studied at the University of Hawaii, Manahan became interested in his identity as a
Filipino American and worked with Filipino immigrants. Through this program, he was introduced to
Dennis Arakaki, a member of the
Hawaii House of Representatives, who mentored him. He later worked for Arakaki as a legislative assistant, and he won. Manahan represented Honolulu City Council District 7, which includes
Kalihi, lwilei, Kalihi Kai, Mapunapuna, Salt Lake, Aliamanu, Hickam, Foster Village, Ford Island, and Sand Island. Manahan has held several leadership positions like vice speaker of the
Hawaii House of Representatives and the chair of the Committee on Budget, as well as vice-chair of the Committee on Transportation for the
Honolulu City Council. As a state representative, Manahan initiated two key projects for his district—the Modernization of
Farrington High School and the Kuhio Park Terrace Modernization project. He ran in the
2014 election to represent in the
United States House of Representatives, but finished sixth in the
Democratic primary held in August 2014. ==Personal==