If, presumably, the NEC is not affected by this, how will they handle the extended NEC trains that go into Virginia on CSX and NS? I would hope that they will just terminate/originate them in Washington, as canceling them will devastate the frequency of the Washington-Boston service.
What about the Empire Service? Part of it is on CSX tracks being leased by the state of New York and (I think operated by Amtrak.)
Also, will this affect the smaller railroads like the New England Central (which hosts the Vermonter), or Pan Am (which hosts the Downeaster?)
Amtrak also owns the tracks in Michigan up to Porter, IN, if I understand correctly. While they couldn't run trains into Chicago, could they continue to run trains from Pontiac to, say, Kalamazoo?