Most everyone has an opinion on who will win the presidential election next Tuesday, but in all the prognostication one question has gone mostly overlooked: What if no one wins?

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Sure, someone ultimately will be the declared the victor.

But the idea that the Nov. 6 balloting could come and go without a winner decided for days, weeks or even months is an increasingly likely possibility only a few have explored.

"I do think there's a chance we will not know on Wednesday morning the 7th who won," said Greg Valliere, chief political strategist at Potomac Research Group in Washington, D.C. "To have an election potentially not be definitive and dragged out for maybe several days or longer — that's not a good story."

Superstorm Sandy has only heightened that unease, throwing into question whether many thousands in storm-damages states will even have the logistical needs of power and transportation to conduct a valid election. (Read More: )

Valliere said Sandy has had a "significant impact" on the race, primarily benefiting Obama who has displayed "leadership skills" and helping negate momentum that Romney had been enjoying since he trounced the president in the first debate last month.