2010Final results
2010 election for Hawaii's 2nd District
U.S. House · Hawaii
Mazie K. Hirono (D) won with 72.2% of the vote, defeating John W. Willoughby (R) by 46.9 points.
Mazie K. HironoDemocrat · winner
72.2%132,290
John W. WilloughbyRepublican
25.3%46,404
Pat BrockLibertarian
1.8%3,254
Andrew Vsevolod Von SonnNonpartisan
0.7%1,310
183,258 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Mazie K. HironoJohn W. Willoughby
$992.5K
Raised by the campaign
$30.7K
$1.1M
Spent by the campaign
$31.1K
$216.5K
Cash on hand
$0
Campaign money: FEC, through Dec 31, 2010; FEC, through Dec 2, 2010.
Source: FEC campaign filingsUpdated Dec 31, 2010
The candidates
Mazie K. Hirono (D)John W. Willoughby (R)
Also on the ballot: Pat Brock (Libertarian), 1.8%; Andrew Vsevolod Von Sonn (Nonpartisan), 0.7%