Candidates

• Daniel Akaka, incumbent U.S. Senator
• Ed Case, U.S. Representative

Campaign

Case had stated that although he has the deepest respect for Daniel Akaka, Hawaii is in a time of transition with regard to the state's representation in Congress which requires that the state phase in the next generation to provide continuity in that service. He had warned the state would lose all clout in Washington if the state's two US Senators, both of whom are over 80 years old, leave office within a short time of each other.^{[citation needed]} If a Senator were to die, Hawaii election law requires that the governor appoint a replacement of the same party.^[1]

Hawaii's other members of Congress, Rep. Neil Abercrombie and Sen. Daniel Inouye, pledged their support to Akaka.^[2]

Debates

• Complete video of debate, August 31, 2006

Polling

Endorsements

Results

Candidates

• Mark Beatty, attorney and businessman
• Jerry Coffee, retired Navy captain, Vietnam War POW, and motivational speaker (withdrew from the race before the Republican primary but his name still appeared on the ballot)
• Charles "Akacase" Collins ^{[citation needed]}
• Jay Friedheim, attorney and candidate for the U.S. Senate in 1998 and 2004
• Eddie Pirkowski, businessman
• Steve Tataii, conflict resolution teacher and author

Results

Hawaii State Representative Cynthia Thielen was selected to be the Republican nominee after Jerry Coffee, who had previously withdrawn his candidacy, won the primary.

Candidates

• Daniel Akaka (D), incumbent U.S. Senator
• Cynthia Thielen (R), Hawaii State Representative
• Lloyd Mallan (L), perennial candidate

Predictions

Polling

Results

Akaka won in all 4 Hawaii counties, taking at least 60% of the vote in each area.