Hawaii delegates cast their votes for the presidential nomination during Day Two of the Democratic National Convention in Charlotte, N.C., on Sept. 5, 2012. | AP Photo

Polls close: 11 p.m. ET

Presidential race: Hillary Clinton (D) vs. Donald Trump (R)

Hawaii, which has four electoral votes, has gone Republican twice: in the 1972 and 1984 landslides. Obama broke 70% here twice, but without a native son on the ballot, expect Clinton to win closer to 60%.

Rating: Safe D

Senate race: Brian Schatz (D) (i.) vs. John Carroll (R)

Having won the 2014 special election, Schatz is campaigning for a full term this year.

Rating: Safe D

House race to watch -- HI-01 (Honolulu): Colleen Hanabusa (D) vs. Shirlene Ostrov (R)

Hanabusa, who lost to Schatz in the 2014 primary, is likely headed back to Congress in the race to succeed the late Rep. Mark Takai (D).

Special-election rating: Safe D

General-election rating: Safe D