One more day: Obama in his final hours in the White House

WASHINGTON — Eight tumultuous years at the helm of American power have come and gone, and for President Barack Obama, this is finally the end.The president is spending his last full day at the White House on Thursday before becoming an ex-president. The big decisions and grand pronouncements are all behind him, but Obama is still in charge until President-elect Donald Trump takes the oath at noon on Friday.The White House left Obama's schedule mostly empty for his last day, while saying he