Ryan is smart enough to engage Uncle Joe in a respectful way and to offer a clear, concise yet warm alternative. Like Mitt did. Very warm. But no condescending crap.
I suspect he'll make his points in the same manner he did when he schooled obama on the health care bill.
He came across as informed and serious while barry looked much the same way he did in the recent debate.
Ryan's performance will not be a liability to the ticket.