Why does amtrak go into canada and why does via rail not service some of the U.S. stations?

Question

I was just curious. I mean when I was in Toronto and Montreal I saw amtrak trains servicing there and in some of the small towns in between them. I hear they have one out in Vancouver as well coming from Seattle. I just want to know why via rail isn't servicing some of the stations in the US. Like Detroit, NYC, Seattle, and possibly Chicago with stops in between of course.

Thanks guys.

Answer 1

It's just a matter of preference I guess.  Amtrak already connects border cities, so no point duplicating.  Funding is also an issue.

Answer 2

did you know that yes it may be amtrak logo on  side of train'

but once its cross the border its VIA  rail  personal operating the train into

the the candian terminals