The Republicans shouldn't even be playing in the Hawaii special election for the House seat opened when Democratic Rep. Neil Abercrombie decided to run for governor. But it's a sign of the poisonous political atmosphere for Democrats that a GOP candidate has a chance at seizing what is arguably President Obama's hometown House seat. Helping the Republican candidate, Charles Djou, is the fight between the two leading Democrats in the May 22 winner-take-all election. Fears are so high they'll split the vote that some Democrats are quietly urging Obama to ask either former Rep. Ed Case or state Senate President Colleen Hanabusa to get out. No signs he'll do that yet.