It's ridiculous for Tom's people to call the one
city they do have the united states.
Mayor of Chareslton?
That's one of the things I loved about Asmiov's foundation novels, the tiny little city was ruled by a mayor, which eventually covered the entire planet and then half the galaxy by the time Asimov died, but still the elected ruler of half the galaxy was called "The Mayor".
(You all did see the "this season" on Falling Skies preview advert after the two hour pilot? The kids inside the TV might be blind and dumb, but we who can see the fricking future can accept that Ben Hathaway is Ben Hathaway.)