Former Hawaii Gov. John Waihee (D) has endorsed Sen. Brian SchatzBrian Emanuel SchatzChris Murphy’s profile rises with gun tragedies Senators grill ex-Equifax CEO over stock sales Overnight Cybersecurity: Trump proclaims 'Cybersecurity Awareness Month' | Equifax missed chance to patch security flaw | Lawmakers await ex-CEO's testimony | SEC hack exposed personal data MORE (D-Hawaii), giving him a potential boost in his race against Rep. Colleen Hanabusa (D-Hawaii).

The endorsement could help Schatz bridge the ethnic divide that often dominates Hawaii Democratic politics.

Waihee was the first native Hawaiian to serve as governor of the state, from the mid-1980s until 1994. He's since served as part of Gov. Neil Abercrombie's (D) administration as head of its Office of Hawaii Affairs.

Abercrombie appointed Schatz to the Senate.