It could also have the opposite effect. Obomobots for three+ years have been indoctrinated as to the infallibility of their messiah. They have as some here have said been promised a “billion dollar campaign” to secure another term for “the one”.
He is now looking all to fallible and vulnerable and to a class of people, liberals, whose very day to day existence depends on their emotional barometer, anything but the best and most positive of news will discourage them.
You raise a valid point. BHO’s support base could get discouraged and abandon him.