Considering how toxic this administration is, Obama may not have anyone with credibility left to send. Kerry has somehow managed to become an even bigger embarrassment than he was before. Susan Rice is hostile, snippy and inept. And her lies about Benghazi on the morning shows haven't done much for her credibility. Hillary Clinton is on the campaign trail. Last time Obama sent Jack Lew into the field, because you know he's Jewish, he got booed. So instead Obama sent the most useless guy in an administration filled with them.