Under three weeks left: Obama in closing stretch of presidency

His last presidential vacation behind him, Barack Obama is entering the closing stretch of his presidency, an eleventh-hour push to tie up loose ends and put finishing touches on his legacy before handing the reins to President-elect Donald Trump.Obama returns to Washington midday Monday from Hawaii with about two-dozen work days left. His final days will largely be consumed by a bid to protect his endangered health care law, a major farewell speech and the ongoing handover of power to Trump.In