No one thinks Clinton would've won a closed primary in Washington. But it wouldn't have been a 45% margin win for Sanders.
I know, I was mainly responding to the poster who seems to think Oregon will be very close. It won't be. Sanders' margin won't be what it was in WA, but the PNW is still a very pro-Sanders region.
Uh, just out of curiosity, what makes you think the PNW is a "very pro-Sanders region"? Yes it's like 99% white (and I admit that's arguably that's been the best predictor of Sanders' vote) but Washington and Oregon both have some of the most moderate elected Democrats in the country. The PNW Democratic Parties aren't exactly a bastion of Sanders-style liberalism in the way that, say, the Wisconsin Democratic Party is (Tammy Baldwin, Russ Feingold, ect.) It's also, again, a closed primary, a format that Sanders has done badly in so far.
I'd like to stress that I wouldn't be surprised if he won Oregon -- I'm just saying that I don't expect it to be a blowout, and I don't think the result of an open caucus in Washington tells us much about how Oregon will vote using a completely different format.