A non-political question to discuss in this thread could be how many pedestrians/cyclists would go back and forth between NYC and DC daily if they were given priority over cars?
Another question would be how this option to take a fast train between these two cities would alter the use of other routes in those areas. E.g. how far south of NYC would people go to NYC to catch the fast train to DC and how far north of DC would people go south to take the fast train to NYC?