I see that Snopes fails to mention the book release where it was said he was born in Kenya.
That release was in 1991, as I recall.
What Snopes does note credit is that Hillary’s campaign on the question of the place of Obama’s birth, predated any mention by Trump.
"A 1991 literary promotional booklet identified Barack Obama as having been born in Kenya."
http://www.snopes.com/politics/obama/birthers/booklet.asp
So it might seem that one Snopes doesn't know what the other Snopes is doing!
(Obama's own book publicists claimed that he was born in Kenya from 1991 until 2007 -- 16 years. And nobody knows what he claimed on his college and law school applications.)