Still an undeclared candidate, Dino Rossi has a double-digit lead over ultra-liberal Democrat incumbent Patty Murray.

This is a Democrat-held seat that is not identified as lean Republican, or even toss-up, by any political predicters.

From Survey USA (via Hedgehog):

US SENATE – WASHINGTON STATE (Survey USA)
Dino Rossi (R) 52%
Patty Murray (D-inc) 42%

Of particular interest to Libertarian Republicans, the poll also found that Dr. Art Coday is within 4 points of Murray.

Patty Murray (D-inc) 45%
Art Coday (R) 41%

Coday is a free marketeer health care reform advocate. His media coordinator for his campaign, is Steve Beren, libertarian-conservative former congressional candidate (Seattle against Jim McDermott), and a friend of Libertarian Republican blog.

Sean Trende of Real Clear Politics says the following:

The more I look over these numbers, the more I'm struck by how bad they are for Murray. She gets clobbered by Rossi, who has run two statewide elections in the last five years, losing by ten points.

But even if Rossi doesn't run, she's stuck at around 45% against the rest of the field... These are the type of candidates who should be pulling 30% against even an unpopular three-term Senator right now, not running neck-and-neck with her.