Then send Biden; that’s what vice-presidents are for. Or have Holder attend. Or Kerry. Don’t send low level flunkies. This was another screw-up for an administration that has been an endless chain of screw-ups.
I can understand not sending Biden. He might molest Angie Merkel in front of the cameras or otherwise do something ridiculous. Of course this assumes that Obama should send someone, which I’m not convinced is the case.