first 30 seconds of the video at the hotair link sets up what is being described as BC taking over. Now, BC may very well have exaggerated his role in this (it got good to him), but it was definitely planned for BC to take the podium, 0 to leave, and BC to take questions.
I suspect 0 expected BC to praise how well 0 was handling things, but when 0 was cornered to return the favor to BC .... he chose THAT moment to boogie on out.
Strange man....strange behavior.
I don't think Obama and Bubba have much use for each other. In many ways, they're too much alike. They're both pathologically narcissistic, and both have misused the office of president for their own self-aggrandizement, and to force unwanted change on the American people.