The Hawaii Teamsters and Allied Workers Union has endorsed former Honolulu Mayor Mufi Hannemann for governor.
The union has more than 6,000 members on Hawaii and Guam.
Hannemann, a Hawaii Independent Party candidate, is running against state Sen. David Ige, a Democrat, and former Lt. Gov. James "Duke" Aiona, a Republican.
"His ability to work with others to get the job done without jeopardizing the needs of the working people and their families is a skill necessary as governor," the Teamsters said in a statement. "Mufi has down great leadership in the past and we believe will be a great governor for our state."
Ige, meanwhile, has picked up the endorsement of the Hawaii Government Employees Association, the state's largest public-sector labor union. The union, which represents about 28,000 members, also endorsed Lt. Gov. Shan Tsutsui.
The HGEA did not endorse in the Democratic primary between Ige and Gov. Neil Abercrombie.
“We believe both David Ige and Shan Tsutsui will be an effective leadership team who will move our state forward for the next four years,” Diana Nakashima, the HGEA’s state political action committee chair, said in a statement. “They have demonstrated their strong support of working families and public employees, and recognize the vital services our members provide for communities statewide."