Heck, not just Obama.
Over the past week or so every news story, radio update, etc. has mentioned the video in the first sentence, if not the headline.
Like a hypnotist repeating “it’s the video, it’s the video”, so that even when awakened with the truth, the subconscious will still think “it’s the video”.
If they lie enough they can even convince themselves.
“The video” fits the preferred narrative; terrorism doesn’t.
Team Obama and their cohorts in the Media just can’t seem to come up with a seemingly sensible narrative that they all can agree on and that they can sell. Facts keep getting in the way.