NV, AZ, ID and MT are solid Trump.
The Left Coast states of WA, OR and CA are a lost cause - no Republican will carry them.
NM is a possible toss-up but at the moment leans D.
Hillary has almost zero real voter support in californication, polls notwithstanding she’s just not liked at all. A charismatic R could win there. Reagan did and if anyone says demographics have changed that’s not the whole story. The largest demographic shifts have been Chinese moving in and blacks moving out. The Chinese are mostly from communist prc and so start out leaning D. But they have mostly normal family and sexual values _ the D party alienates and disgusts them. Also they are largely very wealthy and tend to go into business and investments here. Such folks often , not always , discover conservativism when hit with califirnicstion’s extremely expensive business regs plus its astronomical state taxes on just about everything. The Chinese and Latinos for that matter are quite winnable. It’s just they no R has campaigned for them in so long that most of them don’t think about voting R anymore. If s charismatic R with $$$ campaigns seriously there, California is very winnable. It costs money, though, the media costs are sky high there.