Of any state, Oregon is the most likely to separate their territory though as they have pushed for it in the last century with Jefferson State (Oregon/California), and they have a lot more legality with Greater Idaho than secession into a new state.
https://www.greateridaho.orgIf Portland/Seattle made their own state and let Eastern Washing, Eastern Oregon and SW Oregon go, both state would be better to fuck off whichever way it desires. That'll never happen though.
For now, looking at Idaho, Montana
PS Oregon has universal mail in ballots, so a Democrat is guaranteed to win until the end of time.
