"Battleground states in the 2012 presidential election", Yahoo! News, October 28, 2011, [1], (accessed December 1, 2011). Archived November 1, 2011, at the Wayback Machine
"Battleground states in the 2012 presidential election", Yahoo! News, October 28, 2011, [1], (accessed December 1, 2011). Archived November 1, 2011, at the Wayback Machine