Now it could be Biden is unaware this us a right-wing jab. If so, that would mean he's out of touch. It could also be that he misheard it, although I have some trouble with that explanation. It could be that Biden was agreeing with the caller who claimed he was joking, though I never find it funny when someone tells me to go f--- myself. '
Is Biden's response an indication he's losing it? I voted for the guy, so I have no desire to see him fail.