Hawaii has two members of the U.S. House of Representatives. One of them, Neil Abercrombie, has already announced that he will run for Governor in 2010. Not only that, he is planning to resign soon, because it is impossible for him to campaign for Governor while he is so far away in Washington, D.C.
However, the Hawaii Elections Office says it can’t afford to hold a special election to fill Abercrombie’s seat, and would leave it unfilled until mid-September, when the state is holding its regularly-scheduled primary for all partisan offices. Nothing in state law requires any state official to call a special election to fill a vacancy in the U.S. House before September 2010. See this story.