2004Final results
2004 election for U.S. Senate in Hawaii
U.S. Senate · Hawaii
Daniel K. Inouye (D) won with 75.5% of the vote, defeating Cam Cavasso (R) by 54.5 points.
Daniel K. InouyeDemocrat · winner
75.5%313,629
Cam CavassoRepublican
21.0%87,172
Jim BrewerNonpartisan
2.2%9,269
Jeff MallanLibertarian
1.3%5,277
415,347 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 2004
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.
Daniel K. InouyeCam Cavasso
$2.8M
Raised by the campaign
$57.5K
$1.8M
Spent by the campaign
$57.1K
$1.1M
Cash on hand
$390
Campaign money: FEC, through Dec 31, 2004.
Source: FEC campaign filingsUpdated Dec 31, 2004
The candidates
Daniel K. Inouye (D)Cam Cavasso (R)
Also on the ballot: Jim Brewer (Nonpartisan), 2.2%; Jeff Mallan (Libertarian), 1.3%