U. S. Rep. Rick Larsen (D-WA) has endorsed Sen. Barack Obama, giving the Democratic presidential contender five of Washington’s 17 superdelegates.

Larsen joins fellow Reps. Adam Smith and Brian Baird, Gov. Christine Gregoire, and Democratic National Committee member Pat Notter.

Sen. Hillary Clinton, also has five superdelegates in her corner – Sens. Patty Murray and Maria Cantwell, Reps. Norm Dicks and Jay Inslee, and King County Executive Ron Sims.

The state’s other seven superdlegates remain undecided. They are Congressman Jim McDermott, former House Speaker Tom Foley, State Democratic Party Chairman Dwight Pelz , Vice Chairwoman Eileen Macoll, and Democratic National Committee members Ed Cote, Sharon Mast, and David McDonald.