Few Voters Are Truly Up for Grabs, Research Suggests

… In spite of clichés about Nascar dads and Walmart moms, the actual share of voters nationally who are up for grabs is probably between just 3 percent and 5 percent in this election, polling experts say.

The Obama and Romney campaigns are expected to spend on the order of $2 billion, in part to try to sway this tiny share of the electorate. [cont.]

Rebecca Berg, New York Times