Don’t forget that WA is heavily unionized (Boeing, parts makers for Boeing, etc.)and they are PISSED that the Dems want to take away their private insurance for Medicare. I know as my brother is a retiree from Boeing. MANY union workers may not vote for Trump but they won’t vote for a Dem, either.
Well that may be true about Union people being angry, I don’t think they’ll overcome the liberal bias in western Washington. Even though two-thirds to almost three-quarters of the state will vote Republican, all it takes is the four counties right around Puget Sound, with King being the leader, to take it for the whole state. Until you can overcome King County, no chance in hell.