Ed Pilkington in The Guardian:
When Barack Obama steps up to the podium to deliver his inaugural address, one man standing anonymously in the crowd will be paying especially close attention. With his cropped hair, five o'clock shadow and boyish face, he might look out of place among the dignitaries, though as co-author of the speech this man has more claim than most to be a witness to this moment of history.
Jon Favreau, 27, is, as Obama himself puts it, the president's mind reader. He is the youngest chief speechwriter on record in the White House, and, despite such youth, was at the centre of discussions of the content of today's speech, one which has so much riding on it.
For a politician whose rise to prominence was largely built upon his powers as an orator, Obama is well versed in the arts of speech-making. But today's effort will tower over all previous ones.