Breene Harimoto is a life-long resident of the Pearl City area, graduating from Waipahu High School and the University of Hawaii Manoa.
Prior to entering public service, Harimoto was an information technology professional, project manager and management consultant in the private sector for 30 years, according to his legislative website.
Harimoto served eight years on the Hawaii Board of Education, from 2002 until he resigned in June 2010 to run for the Honolulu City Council. Representing the Leeward District, he chaired the school board in 2004 and 2005.
From 2011 until his Senate election in 2014, Harimoto represented District 8 on the Honolulu City Council. He chaired the council’s Transportation Committee. Harimoto ran uncontested in the nonpartisan City Council race in 2010.
He also was a member of the Oahu Metropolitan Planning Organization Policy Board and served as its chair for two years.
In 2015, Harimoto announced he had been diagnosed with pancreatic cancer and that he planned to undergo surgery. He returned to work in the Legislature in November 2015.
During the 2017 legislative session, Harimoto was a passionate opponent to the hotly debated medical aid in dying legislation. He said at the time his cancer was in remission.