Democratic presidential candidate, Sen. Barack Obama, D-Ill., and his vice …

AP Photo/Alex Brandon | published: August 29, 2008

Democratic presidential candidate, Sen. Barack Obama, D-Ill., and his vice presidential running mate Sen. Joe Biden, D-Del., center, gets a football autographed by Pittsburgh Steelers coach Mike Tomlin as he holds his daughter, Harlynn Quinn Tomlin, 2, in Pittsburgh, Pa., Friday, Aug. 29, 2008.