Polls are to be taken with a big grain of salt...
I have never been polled or surveyed on who I may vote for. I casted my early vote Saturday, so right there we have at least two people (my girlfriend and I are in the same boat) that were obviously not included in the "polling numbers" but casted votes already.
I'm sure there are a lot of others in the same situation.
'11 BMW E92 ///M3 - ZCP and DCT
'13 Toyota Tundra - 4x4 Platinum CrewMax, 5.7l iForce V8