The GOP senator's campaign is building off a successful tactic.
Despite the increasing dominance of the 24-hour news cycle, which keeps us inundated with news, voters did not rely just on their televisions or even computers for information. Their mobile devices were also a major source of information.
In addition to the $2 billion spent this election cycle, the Barack Obama and Mitt Romney campaigns have also been feverishly crunching numbers that have nothing to do with dollars. There's another entity that's proving just as big in this presidential election: big data.