_____________________________
Yes he is.
How do you know he is?
Is Obama a U.S. citizen?
_____________________________
Yes he is.
How do you know he is?
He was born in the city of Honolulu, in the county of Honolulu, on the Island of Oahu in the state of Hawaii at 7:24 P.M. on August 4, 1961.
http://www.honoluluadvertiser.com/article/20081101/NEWS05/811010345/1001/localnewsfront
Also, announcements of his birth appeared in both Sunday Honolulu newspapers the Sunday following his birth:
http://whatreallyhappened.com/IMAGES/ObamaBirthStarBulletin.jpg
http://whatreallyhappened.com/IMAGES/obama-1961-birth-announcement-from-honolulu-advertiser0000.gif