ABC News’ Rick Klein reports: National Democrats made it official today: They are pulling out of a special election for a House seat in Hawaii, faced with the strong likelihood that the two Democrats in the race will split the vote and hand the seat to the Republican. “The DCCC will not be investing additional resources in the HI-01 … special election,” said Jennifer Crider, a spokeswoman for the Democratic Congressional Campaign Committee. “Local Democrats were unable to work out their differences. The DCCC will save the resources we would have invested in the Hawaii special election this month for the general election in November.” National Democrats had sought to pressure state Senate President Colleen Hanabusa out of the race, with polls suggesting that former Rep. Ed Case, D-Hawaii, is the stronger candidate to replace Neil Abercrombie, who resigned from the House to run for governor. But with many local Democrats cool on Case, Hanabusa has vowed to stay in the field. State election laws don’t provide for a primary in a special House, so the favorite appears to be the lone Republican, Honolulu City Councillor Charles Djou, in the May 22 election. The move by national Democrats is likely to increase attention on the other special House race this month, in Pennsylvania, where the late Rep. John Murtha’s, D-Pa., seat is on the ballot.