Air Force Maj. Gary Dylewski carried the "football," the black attache with the nation's nuclear codes, for one president Friday morning and a second in the afternoon.

The presidential emergency satchel contains codes with which a commander in chief can order a nuclear attack. The 24-hour duty of carrying the hard-sided black briefcase, jokingly known among White House staff members and reporters as the "football," is rotated among the military aides from the five services assigned to the White House.Dylewski carried the bag Friday. In the morning, he rode with Ronald Reagan to Capitol Hill. After George Bush was sworn in, Dylewski began shadowing Bush.