It's election day and you are representing the Lime Green Party of America. Name any state to grab its electoral votes and defeat the hated Periwinkle party.
The suburb of DC leaves quite a few places to guess, although Maryland does have very few places technically incorporated as cities. The Susquehanna is also the major-er river flowing into the Chesapeake. If people had trouble spelling it, they may waste a bit of time before Potomac dawns on them.