As already pointed out, I'd add NV and RI to the list, but that's probably it.
I'm not seeing WA. First, can you even mathematically make it work with King? Maybe it's possible by just eye-balling it, but I'm not so sure. Second, even if you can, I'm having difficulty conceptualizing what this hypothetical candidate would look like. You're talking about someone who would drive up a huge margin in King, but would barely lose places like Snohomish with low turnout, and also manages to somehow lose Whatcom and reverse the trend there? What would this candidate even look like?
You can't. In the 2016 SOS race, the Democrat Tina Podlodowski won about 4 counties and still lost by 10. If Snohomish goes red, King is a narrower Dem victory.
