The outgoing president leaves a loaded gun in the Oval Office.

As a presidential candidate, Obama made clear that, along with "dumb wars," he firmly opposed unauthorized wars. That December, in a candidate survey on executive power conducted by reporter Charlie Savage, Sen. Obama stated plainly: "The President does not have power under the Constitution to unilaterally authorize a military attack in a situation that does not involve stopping an actual or imminent threat to the nation."

http://reason.com/archives/2017/01/10/goodbye-obama