AP - Democrat Barack Obama struggled Thursday to explain how his upcoming trip to Iraq might refine, but not basically alter, his promise to quickly remove U.S. combat troops from the war.

AP - The plan was nothing if not audacious: A turncoat persuades rebels to bring together their most prized hostages and march them 90 miles through Colombia's wilderness. A month later, disguised commandos primed with acting lessons land in a helicopter and trick the rebels into handing them over.

AP - Republican presidential candidate John McCain said Thursday that a shake-up in the leadership of his campaign was part of a "natural evolution" as the organization becomes more national in scope.