President-elect Barack Obama mingles with troops in Hawaii on Christmas Day . Obama , dressed casually in a blue polo shirt and dark khaki trousers , chatted casually , shook hands and posed for photos with men and women in the dining hall , which had been decorated with Christmas trees and Santa figurines . The White House said the president was 'deeply saddened' by news of his death. Obama calls on Americans to `` renew a sense of common purpose ''
President-elect Barack Obama mingles with troops in Hawaii on Christmas Day . The White House said the president was 'deeply saddened' by news of his death. Obama calls on Americans to `` renew a sense of common purpose ''