It would be politically controversial to do so, so I doubt it would ever happen. Definitely not from Obama, whom he exposed as a traitor to the very ideals that got him elected.
What oath? The only oath he was required to sign AFAIK is the Oath of Office: one defending the constitution, not the corrupt inbred military-industrial-complex that's grown up. His oath read:
"I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter. So help me God."
I don't know one way or another about a Medal, but this man has upheld his oath, and he did not allow reservation or evasion to deter him in it discharging it's duty. So help him.