Republican Dino Rossi and incumbent Democrat Patty Murray are separated by a single point in the U.S. Senate race in Washington with less than a week until Election Day.

The latest Rasmussen Reports statewide telephone survey of Likely Voters shows Rossi picking up 48% of the vote, while Murray draws support from 47%. Three percent (3%) prefer some other candidate, and two percent (2%) are still undecided. (To see question wording, click here.)

The race remains a Toss-Up in the Rasmussen Reports Election 2010 Senate Balance of Power rankings.

Just over a week ago, Murray inched ahead 49% to 46%. But highlighting the closeness of the race, neither candidate has held a lead greater than five points in 15 surveys conducted since January, and they’ve been within two points of each other nine times. Murray’s support has ranged from 45% to 51%, while Rossi has picked up 46% to 49% of the vote.