Published on Sep 24, 2012 by PBSNewsHour : Political ad spending has doubled overall, but in critical battleground states the numbers are more drastic. In 2008, 519 presidential campaign ads aired in Colorado Springs, Colo. Four years later, the number has jumped to 1,445. Gwen Ifill talks to NPR's Ari Shapiro about the blitz of campaign ads in a Republican leaning city.
