ORRINGTON, Maine — That a single electoral vote could swing the presidential election is a tantalizing prospect among this state’s denizens. Forget New Hampshire, Ohio, and Florida: As northern Maine goes, so could the White House.

The possibility — very remote as it is — stems from a local voting anomaly and a tight national election. Maine and Nebraska are the only states in which electoral votes could be split — they give the winner of the overall tally two votes and the winner of each of their congressional districts one vote.