Article Photos: Obama seeks to bank votes as voting in Iowa starts



  Mark Cooper, of Des Moines, Iowa, places his ballot in the box during the first day of early voting for the November election, Thursday, Sept. 27, 2012, at the Polk County Election Office in Des Moines, Iowa. Iowa is one of 32 states that allow early voting. (AP Photo/Charlie Neibergall)

Mark Cooper, of Des Moines, Iowa, places his ballot in the box during the first day of early voting for the November election, Thursday, Sept. 27, 2012, at the Polk County Election Office in Des Moines, Iowa. Iowa is one of 32 states that allow early voting. (AP Photo/Charlie Neibergall)