Where the Bickers-Berry model (U Colo) went wrong...
Obama's success is also attributable to a better ground game. His field offices in battleground states more than doubled those of Mitt Romney. The mobilization of Democratic-leaning voting blocs was impressive. The Latino and youth vote — key to Obama's win in 2008 — increased their share of the electorate in 2012, each breaking decisively for the president.
Where the Bickers-Berry model (U Colo) went wrong...
http://www.latimes.com/news/opinion/comm…