High speed rail is a non-starter in the US, except for in certain regions. It's 2000 miles from Chicago to LA. Optimistically, if you had a train that averaged 200 miles an hour, it would still take 10 hours. That's just not competitive.
For example:
1. Detroit - Chicago
2. New York - Philadelphia - Washington DC
3. Tampa - Orlando - Miami
4. Atlanta - Nashville
5. San Antonio - Austin - Dallas
6. Portland - Seattle
7. Los Angeles - Las Vegas
8. Cleveland - Columbus - Cincinnati
All of these are 70-90 minute journeys at 200 mph. Faster than driving and if you include everything in the journey also faster than flying.
Now that it's legal for us to use European train cars perhaps the French (or the Chinese) can build it for us :<)