WATCH LIVE:

U.S.

Associated Press
Republican presidential candidate and former Massachusetts Gov. Mitt Romney greets New Jersey Gov. Chris Christie as he campaigns at Basalt Public High School, in Basalt, Colo., Thursday, Aug. 2, 2012, en route to Aspen, Colo. (AP Photo/Charles Dharapak)

View gallery

500 photos

National news events

View Comments (1)