Ground Game Key in Ohio

Get excited! That's the message campaign volunteers will repeat nonstop in Ohio during the next few days, as Barack Obama and Mitt Romney eek out every last vote in the critical Buckeye State. While most polls show the president winning Ohio, the Republican campaign thinks it may be able to do battle with the notoriously effective Obama ground game. The president's campaign has 137 field offices spread across the state, while Romney's campaign has only 40.