2018Final results
2018 election for U.S. Senate in Hawaii
U.S. Senate · Hawaii
Mazie K. Hirono (D) won with 71.2% of the vote, defeating Ron Curtis (R) by 42.3 points.
Mazie K. HironoDemocrat · winner
71.2%276,316
Ron CurtisRepublican
28.8%112,035
388,351 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Mazie K. HironoRon Curtis
$3.3M
Raised by the campaign
$19.9K
$3.1M
Spent by the campaign
$19.9K
$996.9K
Cash on hand
$0
Campaign money: FEC, through Dec 31, 2018; FEC, through Dec 14, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018