John Kerry's most recent trip to the Middle East earned him such discouraging reviews in the local papers, not to mention receptions from Israeli politicians, that American officials have made their diplomatic displeasure known—diplomatically, of course.
Kerry spent last weekend in Cairo negotiating the latest ceasefire in missile exchanges between Hamas and Israel, but the Knesset rejected the plan outright as giving too much to Hamas and too little to them. They leaked their non-support through the media to avoid a diplomatic stand-off, and the media took off. The Times of Israel referred to the whole episode as "the betrayal," and that's only in the headline:
Leaked comments from unnamed senior government sources to Army Radio, Channel 2 and other Hebrew outlets have described the secretary as amateurish, incompetent, incapable of understanding the material he is dealing with — in short, a blithering fool.