The brand new Amtrak Cascades trains

 https://dailyhive.com/vancouver/amtrak-cascades-new-trains-interior-design-photos-testing 

Of course the backwards BC segment has yet to be double tracked.  

https://en.wikipedia.org/wiki/Amtrak

https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Amtrak_System_Map.svg/960px-Amtrak_System_Map.svg.png

https://en.wikipedia.org/wiki/Amtrak#Lines  

https://en.wikipedia.org/wiki/List_of_Amtrak_rolling_stock#Trainsets

https://jfdatalinks.blogspot.com/search?q=Amtrak