Hawaii Senate: September's Primary Shaping Up to be a Showdown Akaka (D) Leads Primary Challenger Case 47% to 45% August 11, 2006 Senator Daniel Akaka Hawaii’s Senate seat will be decided on September 23—Primary Day—rather than November 8. That’s when Democrats Daniel Akaka, the incumbent senator seeking his fourth full term, and U.S. Rep. Ed Case will square off for their party’s nomination in November. And with a little more than a month to go in the primary battle, the contest is either candidate’s to win. According to the most recent Rasmussen Reports election poll, Sen. Akaka leads Case 47%...