Rev 17:8  "...the Beast that was, and is not, and is yet to come."

Obama's Birth year (1961)

He "was" US President , occupied the  office , falls out of office, but is still yet coming.

"and is" epimend - Strong's  Greek #1961

original word - 

 ἐπιμένω: meaning : to stay on  Usage (1) remain, to tarry (2) remain in, persist in 

and is to come: hayah -Strong's  Hebrew #1961 -  

הָיָה hayah - meaning: to fall out, to come to pass

From- J. Weems