It may be hard to believe but some voters still have not made up their minds.
While most voters know exactly who their candidate is, undecided voters are still weighing their options.
Depending on the poll undecided voters can make up roughly as much as 10% of the electorate.
That means undecided voters can swing an election.
Undecided voters tend to be from all walks of life, so it's difficult to know just how to appeal to them.
Most undecided voters are not fixated on one issue, like economy or health care.
Undecided voters are often late deciders.
The country won’t know how much undecided voters mattered until after the election.