I was just reading the news and came upon an article where Obama asked a 7 y/o boy from Hawaii if he had a birth certificate, jokingly.
So I just wondered, why is it completely necessary for the POTUS to be U.S. born? What do you think and why do you think it? And why age 35?
ETA: by U.S. born I mean a natural native of the U.S regardless of actual birth spot, not an immigrant etc.