So a part of Oregon wants to break off and join up with Idaho

Huh.

Well, it would probably give Idaho another Representative in the house.  A conservative one, because Eastern Oregon is like the Central Valley in California - a conservative area dominated and abused by liberal fascists in the urban blight.  I don't see why not.  And we wouldn't be creating another state, so no worries about senators, or who gets to make their own state next.  I say go for it.

And don't tell me Portlandia would be sad to see those conservative folks go.  Portlandia hates conservatives and wants them to die.