THE RACE: Polls show presidential race tightening

With about five months to go, the presidential race is tightening, polls show, with voters nearly evenly divided between President Barack Obama and Mitt Romney, his likely Republican challenger.

Ryan Crocker, ambassador to Afghanistan, to leave

Ryan Crocker, the unflappable diplomat who became the civilian face of America's wars in Iraq and Afghanistan over two administrations, is stepping down as ambassador to Afghanistan and retiring from the U.S. foreign service after a storied tenure in some of the world's most dangerous hotspots.

THE RACE: Polls show presidential race tightening

With about five months to go, the presidential race is tightening, polls show, with voters nearly evenly divided between President Barack Obama and Mitt Romney, his likely Republican challenger.