President Barack Obama was officially sworn in Sunday for his second term as president of the United States, ahead of Monday's public events.In a small and succinct ceremony at the White House, Obama recited the constitutionally mandated oath of office for the third of four expected times during his time in office. Embracing his children after the oath, his younger daughter Sasha was heard to whisper “good job, Daddy!” "I did it!" he responded, before she observed "You didn't mess up."