Ignore the intricate conspiracies about voting database manipulations - HERE is what really happened
Fox News believers walked into voting booths and became confused and disoriented when they couldn't find anyone name "Ben Gawzy" on the ballot.
They had had "Ben Gawzy" infused into their heads after hours and hours and thousands of references to him. They weren't sure what to do without one of those pretty blondes telling them what to do so they left without out voting for anyone.
Oh and the OFA was a well oiled extrememly effective operation AND some of the Senate campaigns (Tim Kaine) were actually better and may have lifted OFA into a win in some states (Virginia).