VIRGINIA (AP) -- With the case largely made and voters mostly decided in Virginia's close, nasty, expensive and strategically crucial presidential and Senate races, success on Tuesday rests on the most basic and old-fashioned electioneering effort -- turnout.

For generations in rural outposts across the state like North in Mathews County, they've called it 'calling and hauling.'

While it's as simple as contacting your supporters and getting them to vote, the operations behind them are sophisticated and data-driven.

Four years ago, the most powerful and organized get-out-the-vote effort Virginia has ever seen helped President Barack Obama end 40 years of unbroken Republican presidential triumphs in the state.

Republicans this year claim to have made 5 million phone calls and knocked on at least 1 million doors -- numbers impossible to independently verify.

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