Marc Ambinder highlights this call from the Obama campaign in Minnesota:
"Hello, this is Jeff Blodgett from the Minnesota for Obama campaign. Our initial data shows this election is significantly closer than the polls predicted. We are putting out an urgent call for volunteers... We are organized groups to knock on doors at five P.M., or earlier if you can, for our final GOTV operation." This was followed by different numbers to call based on your residence.
FWIW the last Survey USA poll put Obama only up three in the state.